实验8-2-7 字符串的连接(15 分)

实验8-2-7 字符串的连接(15 分)

本题要求实现一个函数,将两个字符串连接起来。

函数接口定义:

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char *str_cat( char *s, char *t );

函数str_cat应将字符串t复制到字符串s的末端,并且返回字符串s的首地址。

裁判测试程序样例:

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#include <stdio.h>
#include <string.h>

#define MAXS 10

char *str_cat( char *s, char *t );

int main()
{
char *p;
char str1[MAXS+MAXS] = {'\0'}, str2[MAXS] = {'\0'};

scanf("%s%s", str1, str2);
p = str_cat(str1, str2);
printf("%s\n%s\n", p, str1);

return 0;
}

/* 你的代码将被嵌在这里 */

输入样例:

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abc
def

输出样例:

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abcdef
abcdef
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#include <stdio.h>
#include <string.h>

#define MAXS 10

char *str_cat( char *s, char *t );

int main()
{
char *p;
char str1[MAXS+MAXS] = {'\0'}, str2[MAXS] = {'\0'};

scanf("%s%s", str1, str2);
p = str_cat(str1, str2);
printf("%s\n%s\n", p, str1);

return 0;
}
char *str_cat( char *s, char *t )
{
int i, j, index,length;
index = strlen(s);
length = index+strlen(t);
for (i = index, j = 0; i < length; i++, j++)
s[i] = t[j];
s[length] = '\0';
return s;
}
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