C语言--精品代码（一）--字符数组中插入字符串

#include "stdafx.h"
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#define N 100

char query[] = "insert into babyData values(,'yuanlifu',37.5,0,22,0,55,0,10,0,12,0,23,0,now());";

void insert(char *str, char *pch, int pos) {
int len = strlen(str);
for (int i = len - 1; i >= pos; --i) {
*(str + i + 1) = *(str + i);
}
*(str + pos + n) = *pch;
*(str + len + 1) = 0;
}

int main() {
char ch = '8';
puts(query);
insert(query, &ch, 28);
puts(query);
return 0;
}

#include <stdio.h>
#include <string.h>

void insert(char *str, char *pch, int pos){
int l = strlen(str);
for(int i = l - 1; i >= pos; --i){
*(str + i + 1) = *(str + i);
}
*(str + pos) = *pch;
*(str + l + 1) = 0;
}

int main(){
char str[100] = "abcdefg";
char ch = '2';
puts(str);
insert(str, &ch, 3);
puts(str);
return 0;
}

#include "stdafx.h"
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

char query[] = "insert into babyData values(,'yuanlifu',37.5,0,22,0,55,0,10,0,12,0,23,0,now());";

void insert(char *str, char *pch, int pos) {
int len = strlen(str);
int nlen = strlen(pch);
for (int i = len - 1; i >= pos; --i) {
*(str + i + nlen) = *(str + i);
}
for (int n = 0; n < nlen;n++)
*(str + pos + n) = *pch++;
*(str + len + nlen) = 0;
}

int main() {
char ch[] = "4558";
puts(query);
insert(query, ch, 28);
puts(query);
return 0;
}