Question

下面函数的功能是将一个字符串逆序存放，请填空。谢谢！

# include <stdio.h>
# include <string.h>
void fun(char str[])
{
① ;
int i,j;
for(i=0,j=strlen(str); ② ;i++,j--)
{
m=str[i];
str[i]= ③ ;
str[j-1]=m;
}
printf("%s\n",str);
}

Answer 1

# include <和银轿stdio.h>
# include <string.h>
void fun(char str[])
{
char m;
int i,j;
for(i=0,j=strlen(str);i <搏丛 j;i++,j--)
{
m=str[i];
str[i]=str[j-1];
str[j-1]=m;
}
printf("唤肆%s\n",str);
}

Answer 2

① char m;
② i < j
③ str[j-1];

Answer 3

① int m
② i<j
③str[j-1]

Answer 4

① char m
② i < j
③ str[j-1]

Answer 5

js?c?