Question

C语言类问题： 不使用strcpy()函数，将字符串a复制到字符串b中去？ 麻烦高手解答一下！谢谢哈！会加分

Answer 1

#include <stdio.h>
void copy(char *t,char *s)
{
while(*t)
{
t++;
}
while(*s)
{
*t = *s;
t++;
s++;
}
*t = '\0';
}
int main()
{
char str1[100] = "abc1234";
char str2[10] = "baidu";
copy(str1,str2);
puts(str1);
return 0;
}

Answer 2

#include<iostream>
#include<cassert>
using namespace std;
char* copy(char* strDest,const char* strSrc)
{
assert(strDest!=NULL&&strSrc!=NULL);
char* presult=strDest;
while((*strDest++=*strSrc++)!='\0');
return presult;
}
int main()
{
char str1[100] = "abc1234";
char str2[10] = "baidu";
copy(str1,str2);
puts(str1);
return 0;
}

Answer 3

char *p=NULL;
p=a;
int num=0;
int i;
while(*p='\0')
{
num++;
}
p=a;
for(i=0;i<num;i++)
{
b[i]=*p;
p++;
}

Answer 4

#include <stdio.h>
#include <string.h>
int main()
f char s1[80],s2[80];
int i;
printf("input s2:");
scanf("%s",s2);
for (i=0;i<=strlen(s2);i++)
s1 [i]=s2[i];
printf("s1:%sln",s1);
return 0;
)