sprintf函数分析

 
#include "stdio.h"
main()
{
	char a[10] = "123456";
	char b[10] ;
	sprintf(b,"%s",a);
	printf("%s\n",b);//输出为123456
	return 0;

}

 main()
{
	int a = 123456;
	char s[10];
	sprintf(s,"%d",a);
	printf("%s\n",s);//输出123456
}

sprintf(b,"%s",a)将a数据输出到b输出格式为%s