编辑代码

#include <stdio.h>

 
int main()
{
   int i,j,t;
   int arr[4] = {10,9,8,7};
   int len = sizeof(arr)/sizeof(arr[0]);
   for(i=0;i<len-1;i++){
       printf("i=%d\n",i);
       for(j=i+1;j<len;j++){
           if(arr[j]<arr[i]){
               t = arr[i];
               arr[i] = arr[j];
               arr[j] = t;
               printf("%d=",t);
           }
           printf("j=%d\n",j);
       }
       
       
   }
   for(i=0;i<len;i++){
       printf("%d ",arr[i]);
   }
   
   return 0;
}