输入回车键结束字符组再复制到另一个字符组

Question

输入以回车键结束的字符串(少于20个字符)到字符组s1,将s1的全部字符(到'\0'为止,包括'\0')复制到字符组s2中禁用strcpy函数

Answer 1

用getchar接收字符就可以

#include <stdio.h>
int main()
{
    char s1[100],s2[100],c;
    int i=0;
    while((c=getchar()) != '\n')
        s1[i++] = c;
    s1[i] = 0;
    i=0;
    do
    {
        s2[i] = s1[i];
    }while(s2[i++] != '\0');
    printf("%s",s2);
}