[C/C++] strlen 函數

功能：取得字串長度

/* strlen example */
#include <stdio.h>
#include <string.h>

int main ()
{
    char szInput[256];
    printf ("Enter a sentence: ");
    gets (szInput);
    printf ("The sentence entered is %u characters long.\n",(unsigned)strlen(szInput));
    return 0;
}


參考出處：

http://www.cplusplus.com/reference/cstring/strlen/?kw=strlen