s[10]={a,b}其余为空字符
让s[6]=c
输出ab c (ab和c中间是4个空格)
#include<stdio.h>
int main()
{
char s[10] = { 'a','b'};
s[6] = 'c';
for (int i = 0; i <= 6; i++)
{
if (s[i] !=0)
printf("%c", s[i]);
else
printf(" ");
}
return 0;
}