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栏目:
原标题:Padding printf for Strings by 0
  • 时间:2012-01-13 17:51:10
  •  标签:
  • c
  • printf

是否有办法将空间特性替换为0的印刷粉碎片,用于现场宽度

现行法规

printf("%010s","this");

似乎为扼杀而努力!

最佳回答

事实上,<代码>0只注明数字换算。 你们必须亲自这样做:

int print_padleftzeroes(const char *s, size_t width)
{
    size_t n = strlen(s);
    if(width < n)
        return -1;
    while(width > n)
    {
        putchar( 0 );
        width--;
    }
    fputs(s, stdout);
    return 0;
}
问题回答

内容

 test="ABCD"
 printf "%0$(expr 9 - ${#test})d%s" 0 $test

这将给你必要的东西。

 ~:00000ABCD

或者,你想要补充其他数字,只是改动。

  printf "%0$(expr 9 - ${#test})d%s" 1 $test

页: 1

 ~:11111ABCD

为此:

printf("%010d%s", 0, "this");

a. 前往大地审判(可翻译成C):

str := "this"
printf("0000000000"[:10-len(str)] + str)




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