编函数insert(char * s1,char * s2,int v)，在字符串s1的第v个字符处插入字符串s2

#include #include "string.h"#include "stdlib.h"void insert(char * s1,char * s2,int v){ int i,j; char *t=(char *)malloc(sizeof(char)*strlen(s1)+1); if(!t){ printf("Application memory failure...\n");