输入a,b,c,按顺序输出
#include<stdio.h>
int main(){
float a,b,c,t;
scanf("%f%f%f",&a,&b,&c);
if(a>b){
t=a;
a=b;
b=t;
}
if(a>c){
t=a;
a=c;
c=t;
}
if(b>c){
t=b;
b=c;
c=t;
}
printf("%5.2f%5.2f%5.2f",a,b,c); //重点观察5.2的意思
return 0;
}