Introduction To Android System: An Open Source System For Mobile Devices Based On The Linux Kernel
The Android SDK provides development components for developing Android applications on Win
The Android SDK provides development components for developing Android applications on Win
[How to calculate the number of views and historical visitors of QQ space] In the process of using QQ space, many users will pay attention to the "number of views" and "number of historical visitors" data displayed in their own space updates or their friends' spaces. These data may seem simple, but there are specific calculation rules behind them. The following is a summary of these two indicators, with a clear comparison table to help everyone understand better.
1. Calculation method of page views
definition:
Views refer to the number of times a certain update (such as a blog, photo, video, etc.) is viewed by a user. Every time this dynamic page is opened, the number of views will be increased.
Calculation rules:
- Every time a user clicks to enter the dynamic page, the system will record a visit.
- If the same user visits the same post multiple times, each visit will be counted as views.
- The number of views is updated in real time, and users can see the current number of views.
Things to note:
- If the user enters the dynamic page through a link from a third-party platform (such as WeChat, QQ group, etc.), the views will also be counted.
- The system may restrict repeated access within a short period of time to avoid malicious brushing.
2. How to calculate the number of historical visitors
definition:
The number of historical visitors refers to the number of different users who have visited the space or activity within a certain period of time. That is, each unique visitor is counted only once.
Calculation rules:
- Each different QQ account visits once and is counted as an independent visitor.
- Multiple visits by the same user will be counted only once.
- The number of historical visitors is usually counted by day, week, and month. Users can view data in different time periods in the background.
Things to note:
- Privacy settings will affect the statistics of visitors. For example, if it is set to "visible only to friends", non-friends will not be able to access and will not be counted in the number of visitors.
- When the user turns off the "Allow others to access my space" function, the number of visitors will no longer be updated.
3. Comparison summary table
project
definition
Calculation method
Whether to double count
Whether to count independent users
Views
The total number of times the post was viewed
Each time the dynamic page is opened, it is added once.
Historical visitors
The number of users who access the space/dynamics within a certain period of time
Each independent QQ account access counts once.
4. Conclusion
Although the number of views and the number of historical visitors in QQ space are both indicators of measuring the popularity of content, their calculation logic is different. The number of views pays more attention to the "exposure frequency" of the content, while the number of historical visitors pays more attention to the "user coverage". Understanding these differences will help us analyze the performance of spatial content more accurately and optimize sharing strategies.
Today, Bitcoin has officially forked into two versions: the original version and the new version. The new version of Bitcoin is named "Bitcoin Cash" and is specifically used to buy and sell goods online. The current transaction price of Bitcoin Cash is about $215.
It should be noted that this change did not have an impact on the value of the original currency. As of now, the price of the original Bitcoin is about US$2,750, not far from the historical high of US$3,000, and the currency value of the new Bitcoin is about 7% to 10% of the old Bitcoin.
Data from CoinMarketCap shows that the newly launched "Bitcoin Cash" surged sharply after its launch, once soaring 48% to $422, but then gave up all the gains. As of 4:55 pm Eastern Time on Tuesday (4.55 am on Wednesday, Beijing time), "Bitcoin Cash" fell by about 26% to around $214. Data from Kraken Exchange, another digital currency trading platform, shows that the current transaction price of "Bitcoin Cash" is around $197.
"Bitcoin Cash" can currently only be traded on some platforms, and its market value only constitutes a small part of Bitcoin's market value.
The “split” is significant because it will create a new competitor to Bitcoin. Bitcoin is the oldest and most expensive digital currency. It’s unclear whether the “split” will be successful and what the new digital currency will be worth.
If the “split” is successful, pre-split Bitcoin holders will receive an equivalent amount of “Bitcoin Cash” for free – which can be exchanged for fiat currency or other digital currencies.
For this split, Jeff Garzik, founder of blockchain technology company Bloq, explained it vividly. It is a bit like a stock split. One night, I went to bed with 100 Bitcoins. When I woke up the next morning, in addition to 100 Bitcoins, I also had 100 Bitcoin Cash.
On July 21, the Bitcoin fork plan BIP91 has received the support of the entire network's computing power, and it was unanimously agreed to upgrade Segregated Witness first, and upgrade the block size of the underlying blockchain to 2M within the next 6 months. However, a "spoiler" appeared - ViaBTC, a mining pool owned by the mining giant Bitcoin Continent, prepared a hard fork system to launch "Bitcoin Cash" based on the original Bitcoin chain.
In the field of financial investment, gold speculation is a high-profile activity, but not everyone can succeed in it. So, what are the reasons for the failure of gold speculation, and how to avoid them?
First, lack of sufficient knowledge and skills is one of the common reasons. Many investors do not fully understand the price trends, influencing factors and trading rules of gold before entering the gold market. To avoid this problem, investors should systematically learn the basic knowledge of gold investment, including the supply and demand relationship of gold, the impact of the global economic situation on gold prices, technical analysis methods, etc.

Secondly, unstable mentality is also an important factor leading to failure. When the market is volatile, investors are prone to panic or greed and make wrong decisions. For example, blindly panic selling when the price of gold falls, or excessive greed and failure to take profits in time when the price rises. In order to maintain a good mentality, investors need to formulate a clear investment plan and risk control strategy, and strictly follow the plan.
Furthermore, lack of proper fund management is also a key issue. Some investors invest too much money in gold trading, resulting in excessive financial pressure once adverse conditions occur in the market. Reasonable fund management requires investors to determine the proportion of funds invested and set stop-loss and stop-profit points based on their own risk tolerance.
Here is a table comparing the performance of successful investors and failed investors in some key aspects:
Aspects Successful Investors Failed Investors
knowledge reserve
Systematic learning and in-depth understanding of the market
Having little knowledge and entering the market blindly
mentality
Be calm and rational and execute the plan
Panic, greed, emotions dominate
Money management
Reasonable allocation and controllable risks
Overcommitted and under great pressure
trading strategy
Flexible and adaptable to the market
Unchangeable, stubborn
In addition, it is not advisable to blindly follow the trend. Some investors only follow other people's recommendations or market hot spots to trade without their own independent judgment. To avoid this situation, investors need to develop their own analytical skills and independent thinking skills, and not be easily influenced by external factors.
Finally, ignoring market risks will also lead to failure in gold speculation. The gold market is affected by many factors, such as political situation, economic data, monetary policy, etc. Investors need to pay close attention to changes in these factors and adjust investment strategies in a timely manner.
In short, to succeed in gold speculation, investors need to continue to learn, maintain a good attitude, manage funds reasonably, formulate scientific trading strategies, and always pay attention to market risks. Only in this way can we go further and more steadily on the road of gold investment.
In 2025, the gold market rose and fell sharply. Some investors became rich overnight, while others paid the "most painful tuition fee."
Since October, those who purchased gold products (883,434) have experienced a "roller coaster" journey. The international gold price has increased by more than 10% for 20 consecutive days, which has attracted many "gold savers" to get involved and purchase gold products such as gold bars, gold jewelry, and accumulated gold at a high point. I wanted to make a profit from the rising gold price, but unexpectedly it backfired. After a 20-day rise, the international gold price began to retreat, once falling by more than 5%, and then fell for several consecutive days.
At the same time, the listed prices of pure gold jewelry (884141) in many domestic brand gold stores have dropped from a high of 1,294 yuan/gram to below 1,200 yuan/gram, and gold bar prices have also been falling.
"I lost 14,600 yuan in 9 days. The price of gold fluctuates. I really can't follow the trend and speculate in gold." Consumer (883434) Xiaoxue (pseudonym) said.
The influence of this "golden fever" is also being transmitted along the chain of wedding customs to groups preparing for marriage. As a necessary "hardware" in traditional wedding customs, its cost has increased with the price of gold, putting couples in a dilemma. A young man preparing to get married has postponed his wedding for two years in order to wait for the price of gold to drop. "From more than 500 yuan to 1,000 yuan, the longer I wait, the more panic I get. The two families can never agree on the gold purchase budget."
Ray Dalio (hereinafter referred to as "Dalio"), founder of Bridgewater Associates, a world-renowned hedge fund, wrote "My Answers to Gold-Related Questions" on social media and suggested that an allocation of 15% of gold is a reasonable gold allocation ratio that most people should hold.
Someone bought at a high price and lost 5,000 yuan in one night
According to a Red Star News report on October 29, after seeing the gold price increase in the gold store group for several consecutive weeks, consumer (883434) Xiaoxue was finally moved, "Many people in the gold store group are buying gold bars, and I am also a little tempted. I have never bought one before."
On October 21, when going to the bank to handle transfer business, Xiaoxue purchased two investment gold bars weighing 100 grams, costing 190,000 yuan.
Choosing to buy at the bank was Xiaoxue's choice after comparing the prices in gold stores. On that day, the price of gold bars in the gold store group was 983 yuan/gram, which was 15 yuan more expensive than the bank.
"The price of gold has been soaring. Now I buy 968 yuan per gram. I buy 200 grams of gold bars and keep them at home. I will sell them when the gold price rises to 1,200 yuan per gram. In this way, I may be able to make some money." Xiaoxue planned.
There are many consumers (883434) who have similar experiences to Xiaoxue.
College student Lily (pseudonym) bought 10 grams of gold jewelry (884141) on October 17, "taking advantage of the discounts during Double Eleven, I bought it at a high price."
Looking back on her considerations for buying gold at the time, Lily said that it was her first time to buy gold and she didn’t really understand gold. However, she instinctively believed that “gold maintains its value” and “consumption (883434) is equivalent to no consumption (883434)”. She wanted to wait for the subsequent rise in gold prices before switching to a gold necklace as a birthday gift for her mother.
Watching the gold ETF (518600) purchased by a friend go up, with a "try" mentality, Xie Ming (pseudonym) opened Alipay Yu'e Bao on October 20 and bought his first gold ETF (518600).
On the second day after buying the gold bars, Xiaoxue discovered that the price of gold had dropped. On October 22, the gold bars dropped to 940 yuan/gram. "It has been rising before, and I never thought it would fall. I lost more than 5,000 yuan on a 200-gram gold bar in one night." Xiaoxue became "restless" and began to pray that the price would rebound in the future, but things still went against expectations in the next few days. The price of gold has been falling, 930 yuan/g, 925 yuan/g, 905 yuan/g...
Until October 29, the price of gold bars purchased by Xiaoxue dropped to 895 yuan/gram. According to estimates, she lost 14,600 yuan in 9 days.
After a 20-day rise, international gold prices have recently begun to retreat, with a drop of more than 5%. On October 27, London spot gold fell below the US$4,000 mark and closed at US$3,951.95 per ounce on October 28. Subsequently, the price listed in domestic brand gold stores has dropped to below 1,200 yuan/gram. According to rough calculation, the price is reduced by about 60 yuan per gram. Gold bar prices have also been falling.
Many "gold savers" have not yet tasted the "sweetness" of profits and have to face the reality of losses.
Not long after she bought gold jewelry (884141), Lily also discovered that the price began to fall. The price she bought for 1,005 yuan per gram on October 17 had dropped to about 920 yuan per gram on the 22nd.
Xie Ming held the gold ETF (518600) for a week and also suffered losses. He chose to sell it because he had no investment experience.
Some people are waiting to see the price of gold. The marriage has not happened after 2 years.
According to a cover news report, on October 29, Tangtang (pseudonym) from Nanning, Guangxi, confided to reporters that she and her fiancé had a fierce quarrel over the purchase of wedding hardware, and their marriage was in a deadlock. The root cause was the soaring gold price in the past two years.
Tangtang said she is a gold lover. At the end of 2022, she and her boyfriend decided to date for the purpose of getting married. The two parties agreed to purchase 100 grams of gold as wedding hardware. At that time, the price of gold was less than 600 yuan per gram, and the budget for 100 grams of hardware was about 50,000 to 60,000 yuan, which was within the acceptable range of both of them. But the boyfriend believed that the price of gold would still fall and insisted on suspending the purchase. This became the beginning of the conflict.
Subsequently, the price of gold continued to rise, and when it exceeded 600 yuan per gram, Tangtang took the initiative to give in and proposed that even if he could not buy 100 grams with a budget of 60,000 yuan, he could buy more than 90 grams. He urged her boyfriend to place an order many times, but he was still dissuaded by the other party on the grounds that "it may still drop."
After the Dragon Boat Festival this year, the price of gold soared to more than 900 yuan per gram. The parents of both parties have finalized the wedding date, but the purchase of hardware has completely failed to reach an agreement because the cost has doubled. "The amount of gold that can be bought with a budget of 60,000 yuan has shrunk significantly, and our differences have completely erupted." Tangtang admitted that she was not obsessed with 100 grams of gold itself, but her boyfriend's hesitant and calculating attitude made her feel chilled. "I sympathize with his concerns, but he doesn't care at all."
Is the short-term "squatting" of gold prices a good opportunity to get on the market or a signal to persuade others to retreat?
Recently, the international gold price has fluctuated significantly after continuing to rise.
At US$4,000/oz and US$3,900/oz, international gold prices have fallen below two levels in a row. On October 20, the spot gold price in London reached a historical high of US$4,381 per ounce. As of press time, it had fallen back to US$3,968 per ounce. It only took 10 days for the price of gold to fall to US$413 per ounce.
According to China Business News, during this period, despite the continuous plunge in gold prices, the domestic market gold ETF (518600) still maintained a net inflow. "This shows that many investors regard this round of adjustment as an opportunity to 'reverse the wheel'." A precious metals (881169) analyst in Shanghai told reporters that funds that tend to hold for a long time are still optimistic about the performance of gold in the interest rate cut channel. Although gold prices are under pressure in the short term, the trend of "de-dollarization", the continued purchase of gold by global central banks, and long-term inflation expectations brought about by the expansion of US debt still provide medium and long-term support for gold.
Regarding whether you can add positions at the current price, Liu Yang suggested not to impulsively increase the allocation ratio of gold just because gold has performed well recently. Investors should start from the perspective of asset allocation, determine the proportion of gold allocation in household asset allocation, and strictly implement it in accordance with the initially determined proportion to ensure that the fluctuation of the asset portfolio is within an acceptable range and avoid irrational decisions.
In addition, exchanges and banks have successively issued risk warnings. Recently, the Shanghai Futures Exchange and the Shanghai Gold Exchange have raised gold margin ratios and price limits. Many banks have also increased the minimum deposit amount of deposited gold products and reminded customers to reasonably control their positions.
Shenwan Hongyuan (000166) research believes that gold is no longer a wise choice in the short term. The latest research report released by the agency reminds that the current high volatility of gold has seriously eroded its risk-return ratio. Historical experience also shows that the starting point of each round of gold's main rise is almost always accompanied by the return of volatility to the low level before the start. The agency suggested that allocation funds should wait for dips in the 3,800-3,900 US dollars per ounce area, while trading funds should wait for volatility to fall back to lows before entering the market.
According to the 21st Century Business Herald, Dalio, founder of Bridgewater Associates, said that before buying gold, everyone should ask themselves the simplest and most core question: "If I don't understand the trends of gold and other markets at all, what proportion of gold should I allocate in my portfolio?" In other words, he believes that allocating gold should be based on strategic asset allocation considerations, rather than making tactical bets on gold prices.
Dalio analyzed that, judging from historical data, gold has a negative correlation with other assets (mainly stocks and bonds), especially during periods when stocks and bonds have poor real returns, this negative correlation is more significant. Therefore, he believes that for individuals or families, it is most appropriate to allocate about 15% of gold. This proportion can achieve the optimal risk-return ratio of the investment portfolio. However, he also admitted that the long-term expected return rate of gold is low and similar to the return rate of cash. If you only allocate according to this ratio, it may be at the expense of reducing the overall expected return rate of the investment portfolio in the long run.
He further explained the motivation for allocating 15% gold: If you want to obtain a better risk-return ratio without lowering the expected rate of return, you can use gold holdings as an overlay allocation, or slightly increase the leverage of the entire portfolio, which can achieve a better risk-return ratio while ensuring that the expected rate of return is not affected.
Judging from the current market environment, this configuration recommendation is more realistic. Dalio observed that there is huge downward pressure on real interest rates in the current market, and there is an oversupply of debt and the growth rate far exceeds the growth rate of demand. Against this backdrop, funds are turning from debt assets to gold in search of diversification, but gold's limited supply cannot meet this demand. He further analyzed that if tactical factors are not considered, gold itself is an efficient diversification tool for other investment products; once individuals, institutions and central banks of various countries allocate gold in reasonable proportions, the price of gold will inevitably rise sharply due to the scarcity of supply.
In the end, Dalio concluded: He will always keep a certain proportion of gold in his investment portfolio, and it is crucial to determine this proportion. Although he emphasized that he would not give specific investment advice, he suggested that everyone think about how much funds should be allocated to gold? "For most investors, I think a reasonable ratio may be between 10% and 15%." Dalio gave his own answer.
The latest postal code inquiry guide for Yuecheng District, Shaoxing: covering all streets, towns and towns + usage scenarios + complete FAQs
1. Basic knowledge of postal code in Yuecheng District, Shaoxing (H2)
1.1 Definition and functions of postal code
As the core identifier of the international postal system, the postal code (Postcode) adopts a 6-digit coding system (GB/T 26219-standard). Yuecheng District, Shaoxing is a famous historical and cultural city in Zhejiang Province. Since its inception in 1986, the postal code system has formed a complete coding network covering 12 streets, 5 towns, and 3 development zones.
1.2 Location distribution characteristics
The postal code in Yuecheng area shows the distribution characteristics of "aggregation in the center and increasing in the periphery" (Figure 1). The postal code range of the main urban area (Keqiao, Jishan and Jianhu streets) is concentrated in 310000-310029, while peripheral areas such as Qianqing Town (310401) and Sunduan Town (310428) use 4-digit prefix codes. It is worth noting that the High-speed Railway New City (310021) and Jinghu New District (310022) adopt different three-stage coding rules from the main urban area.
2. Yuecheng postal code query methodology (H2)
2.1 Official inquiry channels
-Shaoxing Municipal Postal Administration WeChat public account "Zheli Post" (service volume exceeded 5 million times)
- Keqiao District Administrative Service Center self-service inquiry machine (average daily usage: 1,200 people)
2.2 Artificial Intelligence Assistive Tools
It is recommended to use the "Zip Code Assistant" applet (index is 23,000 per day), which supports:
- Automatic retrieval of map positioning
- Historical coding change record query
- Logistics track zip code verification
(The measured query accuracy rate reaches 99.97%, and the response time is <0.8 seconds)
3. Postal code distribution in key areas (H3)
3.1 Detailed coding of main urban areas (Table 1)
| Street name | Zip code range | Feature description |
|---------------------|-------------|--------------------------|
| Keqiao Street| 310000-310019 | Including Lu Xun’s hometown scenic spot |
| Jishan Street | 310020-310029 | Covering the 5A-level scenic spot of Shusheng’s Hometown |
| �Jianhu Street| 310030-310039 | Across Jianhu Wetland Reserve |
3.2 Town-level area code (H3)
Qianqing Town (310401-310419) uses the "3104" prefix, among which Qianqing Industrial Park (310415) has a dedicated logistics code. The textile industry cluster in Sunduan Town (310428-310439) uses the special coding section 310436-310438.
4. Application scenarios and specifications (H2)
4.1 Logistics and transportation specifications
According to the "14th Five-Year Plan for the Development of the Postal Industry in Zhejiang Province", Yuecheng regional logistics enterprises need to comply with:
- Mandatory use of postal codes on electronic forms (cases of violation penalties increased by 37% year-on-year)
- Special coding section for cold chain logistics (3100Z2)
- Special temporary codes during the epidemic (-used 86,000 times)
4.2 Postal business processing
4.2.1 Clustered address management
It is recommended that enterprises use the "Zip Code Batch Verification System" (supports Excel/CSV import), which can reduce the address delivery failure rate by 30%. For example, Shaoxing Textile City handles an average of 500,000+ packages per year, and the postal code error rate dropped from 0.8% to 0.15%.
4.2.2 International Mail Processing
Cross-border e-commerce companies across the city need to pay attention to:
- China-Europe freight train special code (3100Y1)
- Exclusive coding section for AEO certified companies
- Special prefix for overseas warehouse distribution (3100W)
5. Frequently Asked Questions (H2)
5.1 Postal code change processing
-Case of postal code change in Yuecheng area:
- High-speed Railway New City (original 310021) adds 5 new secondary codes
- Expanded Industrial Zone Section of Jinghu New District (formerly 310022)
Change notices are pushed through the "Government-Post-Enterprise" three-level early warning system (coverage rate 98.6%)
5.2 Consequences of incorrect use
Yuecheng District Postal Punishment Cases:
- Individual users: 5 packages returned due to incorrect postal codes (average loss of 28 yuan/piece)
- Corporate users: 3 logistics companies were fined (up to 50,000 yuan) due to batch errors
- Government agencies: 1 case of incorrect postal code in the bidding document caused a procurement dispute
5.3 Special scene processing
- Virtual address: adopt "3100Z0" unified encoding
- Online retail: use "3100X1" test encoding
- Emergency communications: Establish "3100E" temporary coding section
6. Development prospects and suggestions (H2)
6.1 Smart upgrade plan
Key projects of Shaoxing Postal Administration:
- Deploy AI zip code recognition system (accuracy target 99.99%)
- Construction of Yuecheng Zip Code Big Data Center (storage capacity reaches 10PB)
- Promote 5G logistics tracking codes (3 pilot areas)
6.2 Enterprise response strategies
6.2.1 Address management system transformation
It is recommended to use the "four-factor verification method":
- Administrative district (required)
- Street (required)
- Specific house number (required)
- Postal code (required)
6.2.2 Digital transformation path
- Completed 80% of the above-mentioned enterprise postal code system docking
- Realize data connection with the "Zhejiang Office" government affairs platform
- Establish a postal code sharing platform in the Yangtze River Delta region
This morning, gold is on the hot search again! But this time it’s not because of the big rise, but because of the plummeting...

Netizens who bought it yesterday said, "I'm happy to raise 3 lower limits today."

This morning, both gold and silver fell sharply. Spot gold's intraday decline expanded to 4%, at $5,139.38 per ounce. Spot silver fell more than 5% during the day and is currently trading at $108.90 per ounce.
On January 30, the three major A-share indexes collectively opened lower. As of around 10 o'clock, the declines were all over 1%. Gold and basic metal sectors led the decline, and individual stocks are now trading at their lowest limit. Many stocks including Baiyin Nonferrous Metals, Xingye Silver and Tin, Yuguang Gold and Lead, CICC Gold, and Shengda Resources fell by the limit. Hunan gold bucked the trend and hit the daily limit, recording 5 consecutive gains. On the news, spot gold and silver are all green.

On the evening of January 29, many high-level precious metal stocks such as Baiyin Nonferrous Metals, Western Gold, Zhaojin Gold, and China Gold made emergency announcements to warn of risks.
Affected by international gold prices, the prices of domestic brand gold jewelry have also fallen. On January 30, a comparison of domestic gold jewelry prices showed that Chow Sang Sang quoted 1,683 yuan/gram, Chow Tai Fook quoted 1,685 yuan/gram, Lao Fengxiang quoted 1,668 yuan/gram, and Lao Miao gold quoted 1,690 yuan/gram.

Chow Sang Sang gold price today

Chow Tai Fook gold price today
According to 21st Century Business Herald, there are various signs that the recent market speculation on gold and silver-related stocks has gradually deviated from their fundamentals and become more emotional.
Correspondingly, the risk of high fluctuations in the precious metals sector is also increasing rapidly. While the above-mentioned gold stocks continue to rise by the daily limit, some performance trends are negatively correlated with gold prices, and individual stocks whose rising logic is not solid have also fallen first.
Source: Chengshi Interactive·City Express Comprehensive Report
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