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二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...了上述的那些地方，剩下的地方存放 Data Code 数据码 和 Error Correction Code 纠错码。
数据编码
我们先来说说数据编码。QR码支持如下的编码：
Numeric mode 数字编码，从0到9。如果需要编码的数字的个数不是3的倍数，那么，最后...
Phase • Animations made easy! - Extensions - Kodular Community
...eSvVWMKMOxG1Hi82M4qOCNQ/view?usp=sharing
Let me know if you find any bugs/errors. Also, I’m open to suggestions and feature requests.
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Error in finding last used cell in Excel with VBA
...ws.Count. We often chose to ignore that. See THIS question on the possible error that you may get. I always advise using . before Rows.Count and Columns.Count. That question is a classic scenario where the code will fail because the Rows.Count returns 65536 for Excel 2003 and earlier and 1048576 for...
What is the best data type to use for money in C#?
...rge numbers of significant integral and fractional digits and no round-off errors. The Decimal type does not eliminate the need for rounding. Rather, it minimizes errors due to rounding.
I'd like to point to this excellent answer by zneak on why double shouldn't be used.
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Launching Spring application Address already in use
I have this error launching my spring application:
25 Answers
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Could not find default endpoint element
... a VS2008/.NET 3.5 solution. When constructing the client .NET throws this error:
33 Answers
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how to solve “ruby installation is missing psych” error?
... to 'rvm uninstall all' before installing libyaml. That's the only way the error cleared
– Sunil Gowda
Nov 16 '12 at 1:05
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fatal: git-write-tree: error building trees
... but it worked, and seemed like a better fit for my case because I got the error after git stash rather than git revert.
– Mars
Dec 24 '17 at 19:38
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ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
...If you are using ubuntu, you have to use the following steps to avoid this error(if there is no replication enabled):
run the command vim /etc/mysql/my.cnf
comment bind-address = 127.0.0.1 using the # symbol
restart your mysql server once.
Update
In Step 1, if you cannot find bind-address in th...
SQL DELETE with INNER JOIN
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Here is the error i got : [Err] 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'spawnlist FROM db.root.spawnlist s INNER JOIN db.root.npc n ON...