c - 斯普林特夫 : pad with '\0' character instead of space

Question

与我的问题相关here :以下代码

sprintf(buffer, "%-16s%-224s%-8s%-8s", "set", "ravi", "26", "60");

...填充空白区域。我需要用 '\0' 字符而不是空格填充。这能实现吗？

Answer 1

您可以通过以下循环实现此目的:

int i;
sprintf(buffer, "%-16s%-224s%-8s%-8s", "set", "ravi", "26", "60");
for (i=0;i<sizeof(buffer);i++)
{
     if (buffer[i] == ' ') buffer[i] = '\0';
}