目录

代码1

代码2

代码3

#include 
int main(void)
{
    char str1[50], str2[50], str3[100];
    gets(str1);
    gets(str2);
    int i, j;
    for(i = 0, j = 0; str1[i] != '' && str2[i] != ''; i++) {
        str3[j++] = str1[i];
        str3[j++] = str2[i];
    }
    while(str1[i] != '')
        str3[j++] = str1[i++];
    while(str2[i] != '')
        str3[j++] = str2[i++];
    str3[j] = '';
    printf("%s", str3);
    return 0;
}

代码2

#include 
void str_add(char* a, char* b){
    int i=0;
    while(a[i] && b[i]) {
        printf("%c%c", a[i], b[i]);
        i++;
    }
    if(a[i]) printf("%sn", a+i);
    if(b[i]) printf("%sn", b+i);
}
int main(){
    str_add("abcd", "ABCDEFG");
    str_add("ABCDEFG","abcd");
}

代码3

#define _CRT_SECURE_NO_WARNINGS
#include 
#include 

void Merge(char a[], char b[], char c[]){
	int len1, len2;
    len1 = strlen(a);
    len2 = strlen(b);//c中没有max函数，一般比较大小时会自己定义一个函数max
    int i = 0, j = 0, k = 0, max = len1 > len2 ? len1 : len2;
    for (i = 0; i < max; i++) {
       if (i < len1) {
       	   //printf("%c", a[i]);
           c[k++] = a[i];
       }
       if (j < len2) {
       	   //printf("%c", b[j++]);
           c[k++] = b[j++];
       }
    }
    puts(c);
}

int main() {
    char str1[50], str2[50], str3[100];
    gets(str1);
    gets(str2);
    //puts(str1);
    //puts(str2);
    Merge(str1, str2, str3);
    //puts(str3);
    
    return 0;
}