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浮点数在内存中的表示 - C/C++ - 清泛网移动版 - 专注C++内核技术
...\n", f1);
// 0 10000101 11110110000000000000000
void * p = (void *)0x42fb0000;
memcpy(&f1, &p, 4);
printf("%f\n", f1);
// 1 11111111 00000000000000000000000
p = (void *)0xff800000;
memcpy(&f1, &p, 4);
printf("%f\n", f1);
return 0;
}
运行结果：
好了，就写到...
Stopping python using ctrl+c
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edited Jan 21 '18 at 21:41
Chris Stratton
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an...
What is the $? (dollar question mark) variable in shell scripting? [duplicate]
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264
$? is used to find the return value of the last executed command.
Try the following in the shell...
PHP中9大缓存技术总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...个php数组之类；
Ecmall商城系统里面就用了这种方式；
4、查询缓存
其实这跟数据缓存是一个思路，就是根据查询语句来缓存；将查询得到的数据缓存在一个文件中，下次遇到相同的查询时，就直接先从这个文件里面调数据，...
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... Greg HewgillGreg Hewgill
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35...
php发送get、post请求的几种方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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stream_get_meta_data($fp);
while(!feof($fp)) {
$result .= fgets($fp, 1024);
}
echo "url body: $result";
fclose($fp);
?>
方法3：用file_get_contents函数,以post方式获取url
<?php
$data = array ('foo' => 'bar');
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Why does this code using random strings print “hello world”?
....Random is constructed with a specific seed parameter (in this case -229985452 or -147909649), it follows the random number generation algorithm beginning with that seed value.
Every Random constructed with the same seed will generate the same pattern of numbers every time.
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How do I install and use curl on Windows?
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Daniel Stenberg
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answered Feb 29 '12 at 22:02
theglauber...
Git clone particular version of remote repository
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You could "reset" your repository to any commit you want (e.g. 1 month ago).
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Graham
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answered Mar 23 '09 at 18:01
Devin JeanpierreDev...