C语言获取系统当前时间转化成时间字符串

因为保存的文件须要加上保存的时间，所以须要一个函数来将系统当前时间获取出来，同一时候转换成时间字符串。详细的时间代码例如以下：

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#include <stdio.h> #include <time.h> int getNowTime(char *nowTime) { char acYear[5] = {0}; char acMonth[5] = {0}; char acDay[5] = {0}; char acHour[5] = {0}; char acMin[5] = {0}; char acSec[5] = {0}; time_t now; struct tm* timenow; time(&now); timenow = localtime(&now); strftime(acYear,sizeof(acYear),"%Y",timenow); strftime(acMonth,sizeof(acMonth),"%m",timenow); strftime(acDay,sizeof(acDay),"%d",timenow); strftime(acHour,sizeof(acHour),"%H",timenow); strftime(acMin,sizeof(acMin),"%M",timenow); strftime(acSec,sizeof(acSec),"%S",timenow); strncat(nowTime, acYear, 4); strncat(nowTime, acMonth, 2); strncat(nowTime, acDay, 2); strncat(nowTime, acHour, 2); strncat(nowTime, acMin, 2); strncat(nowTime, acSec, 2); return 0; } int main(int argc, char *argv[]) { char nowTime[32] = {0}; getNowTime(nowTime); printf("nowTime is %s.\n", nowTime); return 0; }

在Linux以下和Windows以下都是能够编译和执行的。