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std::ctime

STD：：ctime

Defined in header ​​
char* ctime( const std::time_t* time ​​

将给定的自纪元时间转换为本地日历时间，然后转换为文本表示形式，就像通过调用std::asctime(std::localtime(time))生成的字符串具有以下格式：

二次

Www Mmm dd hh:mm:ss yyyy

二次

  • Www-一周中的一天Mon，，，Tue，，，Wed，，，Thu，，，Fri，，，Sat，，，Sun29%。

  • Mmm-月%281个月Jan，，，Feb，，，Mar，，，Apr，，，May，，，Jun，，，Jul，，，Aug，，，Sep，，，Oct，，，Nov，，，Dec29%。

  • dd-当月的那一天

  • hh-小时

  • mm-分钟

  • ss-秒

  • yyyy-年份

该函数不支持本地化。

参数

time-pointer to a std::time_t object specifying the time to print

返回值

指向静态空结束字符串的指针，该字符串保存日期和时间的文本表示形式。字符串可以在std::asctime和std::ctime，并且可以在每次调用这些函数时覆盖。

注记

此函数返回一个指向静态数据的指针，并且不是线程安全的.。此外，它还修改了静态。std::tm对象，该对象可以与std::gmtime和std::localtimePOSIX将此功能标记为过时，并建议std::strftime相反。

对于时间的值，行为可能没有定义。[医]t导致字符串长度大于25个字符%28e.g。10000%29年。

例

二次

#include <ctime>
#include <iostream>
 
int main()
{
    std::time_t result = std::time(nullptr
    std::cout << std::ctime(&result
}

二次

产出：

二次

Tue Dec 27 17:21:29 2011

二次

另见

asctimeconverts a tm object to a textual representation (function)
strftimeconverts a tm object to custom textual representation (function)
put_time (C++11)formats and outputs a date/time value according to the specified format (function template)

c时间文件

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