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vc/mfc *通配符 批量删除文件 - c++1y / stl - 清泛IT社区，为创新赋能！
...de "stdafx.h"
#include <windows.h>
int _tmain(int argc, _TCHAR* argv[])
{
LPTSTR delFileName = L"c:/test/test*.txt";
SHFILEOPSTRUCT FileOp;
ZeroMemory((void*...
How to extract the first two characters of a string in shell scripting?
...{long:0:2}" ; echo "${short}"
US
This will set short to be the first two characters of long. If long is shorter than two characters, short will be identical to it.
This in-shell method is usually better if you're going to be doing it a lot (like 50,000 times per report as you mention) since there...
hexadecimal string to byte array in python
...t bytes.fromhex throws an error when the input string has an odd number of characters: bytes.fromhex("aab") → ValueError: non-hexadecimal number found in fromhex() arg at position 3.
– Константин Ван
Jul 24 '18 at 17:35
...
What's the complete range for Chinese characters in Unicode?
...gh the CJK Unicode FAQ (which does include "Chinese, Japanese, and Korean" characters)
The "East Asian Script" document does mention:
Blocks Containing Han Ideographs
Han ideographic characters are found in five main blocks of the Unicode Standard, as
shown in Table 12-2
Table 12-2. Blocks Contain...
PHP best way to MD5 multi-dimensional array?
...) function.
Test results for multi-dimensional array with md5-hashes (32 char) in keys and values:
Test name Repeats Result Performance
serialize 10000 0.761195 sec +0.00%
print_r 10000 1.669689 sec -119.35%
json_encode 10000...
IOCTL Linux device driver [closed]
...vr_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n", DRIVER_RELEASE);
}
static DEVICE_ATTR(version, S_IRUGO, mydrvr_version_show, NULL);
And during driver setup:
device_create_file(dev, &dev_attr_version);
You would then ha...
Is there a minlength validation attribute in HTML5?
...from constraint validation.
<input pattern=".{3,}" required title="3 characters minimum">
<input pattern=".{5,10}" required title="5 to 10 characters">
If you want to create the option to use the pattern for "empty, or minimum length", you could do the following:
<input pattern=...
How can I convert String to Int?
... is successful. I.e. in this case, x = 0 if the string has any non-integer characters, or x = value of string-as-integer otherwise. So the neat thing is this is one short expression which tells you if casting is successful or not, AND stores the cast integer in a variable at same time. Obviously you...
Replace multiple whitespaces with single whitespace in JavaScript string
...
Isn't it obvious? it replaces more than 1 whitespace char with 1 whitespace char. (the desired result)
– War
Mar 22 '13 at 16:05
4
...
URL encoding in Android
...
This method doesn't encode characters like ğ to %C4%9F. Accepted one encodes!
– Alexander Prokofyev
May 30 '15 at 15:11
...