C语言排序：冒泡排序

#include<stdio.h>int main(){int a[5]={3,9,4,6,1};int i,j,b;//for(i=0;i<5;i++)//数组循环赋值//scanf("%d",&a[i]);for(j=0;j<5;j++)//双重循环保证循环5*5次for(i=0;i<5;i++){ if(a[i]<a[i+1])//比较两数大小后交换 {b=a[i];a[i]=a[i+1];a[i+1]=b;}}for(i=0;i<5;i++)//循环输出显示数组printf("%d\n",a[i]);return 0;}