题解 | 复制部分字符串

#include <stdio.h>

void cpy(char* strcpy,char* str, int x){
    int i = 0;
    str = str+x;
    while(*str != '\0'){
        strcpy[i] = *str;
        str++;
        i++;
        
    }
    strcpy [i] = '\0';
}
int main() {

    char str[30] = { 0 };
    char strcpy[30] = " ";
    char* strx = str;
    char* styy = strcpy; 
    gets(str);

    int m;
    scanf("%d",&m);

    if(m>0 && m<=30){
        cpy(strcpy, strx, m-1);
        printf("%s\n", strcpy);
    }


    // write your code here......
    

    return 0;
}