C语言:编写一个函数,将两个字符串合并到另一个字符串中?答:include <stdio.h> include <string.h> void catstring(char *str0, int len0, char *str1, int len1, char *str2, int len2){ if (len2 <= len0 + len1) { return;} memcpy(str2, str0, len0);memcpy(str2 + len0, str1, len1);} int main(){ char str0[20] = "...