17.复制字符串 ，包括\0

#include
#include 


int main(){
	int len1,len2;
	char s1[44];
	char s2[33];
	scanf("%s",s1);
	scanf("%s",s2);
	len1=strlen(s1)+1;
	printf("先s1的字符长度为：%d\n",len1) ;
	strcpy(s1,s2) ;
	printf("复制字符：%s\n ",s1); 
	len2=strlen(s1)+1;
	printf("后s1的字符长度为：%d\n",len2) ;
	
	return 0;
	
}