sprintf与sscanf

头文件

#include<stdio.h>

数字转字符串

char buffer[100];	//数组要开的足够大,用来存放数字
int num=123;
sprintf(buffer,"%d",num);

字符串转数字

char buffer[100]="123";
int num;	//存放字符串
sscanf(buffer,"%d",&num);