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How do I save and restore multiple variables in python?
...this specific to 3.4+? I almost voted the answer down because it generates errors when you don't use 'b'.
– Wilmer E. Henao
Jun 27 '16 at 20:22
add a comment
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MySQL - length() vs char_length()
...() returns the length of the string measured in characters.
This is especially relevant for Unicode, in which most characters are encoded in two bytes. Or UTF-8, where the number of bytes varies. For example:
select length(_utf8 '€'), char_length(_utf8 '€')
--> 3, 1
As you can see the E...
The simplest way to resize an UIImage?
... I'll just leave the caution that my code that uses this generates malloc errors elsewhere without an additional retain, which is clearly my fault somehow :-).
– Paul Lynch
May 23 '10 at 6:29
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How can I unit test a GUI?
... in my code are well-tested, but because there is so much GUI code, my overall code coverage is lower than I'd like. Are there any guidelines on unit-testing GUI code? Does it even make sense?
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汇编常用寄存器及指令基础总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...寄存器及指令基础总结8086汇编常用寄存器数据寄存器AH&AL=AX：累加寄存器，常用于运算BH&BL=BX：基址寄存器，常用于地址索引CH&CL=CX：计数寄存器，常用于计数DH...8086汇编常用寄存器
数据寄存器
AH&AL=AX：累加寄存器，常用于运...
When should I use perror(“…”) and fprintf(stderr, “…”)?
...n
understanding the difference between - or better, when I should use - perror("...") or fprintf(stderr, "...") .
5 Ans...
Append TimeStamp to a File Name
... to a file using the Path class and string manipulation is not an issue at all. this only an alternative to DateTime.ToString Method (String) or string.Format("{0:yyyy-MM-dd_hh-mm-ss-tt}",DateTime.Now);
– Joseph
Jun 26 '17 at 11:50
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Xcode suddenly stopped running project on hardware: “Could not launch xxx.app: .. No such file..” [c
...
That is really annoying. This error happens in a number of different situations. Sometimes restarting the Xcode, fixes the problem. If not, follow these steps:
Disconnect your device.
Delete the app from your device.
Quit Xcode (Do not just simply cl...
How to trigger a file download when clicking an HTML button or JavaScript
...Edge) and it is not supported in Safari. In 2012 when the answer was originally posted it wasn't supported in any major browser.
– Cfreak
Jul 7 '16 at 3:40
2
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Why use finally in C#?
...d close the stream, data reader, etc. in the finally, if you don't when it errors the connection doesn't get closed, this is really bad with db requests
SqlConnection myConn = new SqlConnection("Connectionstring");
try
{
myConn.Open();
//make na DB Request ...