這個你寫成一行就可以了

//你在double賦值的地方,arr[]后面的花括號里你可能不小心按了一個回車,提交這個試試,對了就采納一下
#include?<stdio.h>
int?main()
{
????double?arr[]={1.78,1.77,1.82,1.79,1.85,1.75,1.86,1.77,1.81,1.80};
????int?i,j;
????printf("\n************排隊前************\n");
????for(i=0;i<10;i++)
????{
????????if(i?!=?9)
????????????printf("%.2f,",arr[i]);
????????else
????????????printf("%.2f",arr[i]);
????}
????for(i=8;i>=0;i--)
????{
????????for(j=0;j<=i;j++)
????????{
????????????if(?arr[j]>arr[j+1])
????????????{
????????????????double?temp;
????????????????temp=arr[j];
????????????????arr[j]=arr[j+1];
????????????????arr[j+1]=temp;
????????????}
????????}
????}
????printf("\n************排隊后************\n");
????for(i=0;i<10;i++)
????{
????????if(i?!=?9)
????????????printf("%.2f,",arr[i]);
????????else
????????????printf("%.2f",arr[i]);
????}
????return?0;
}