简单C程序：给随机三个数由大到小排序,求高手检查错误,

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简单C程序：给随机三个数由大到小排序,求高手检查错误,
#include<stdio.h>
int main()
{
int a,b,c;
printf("Please input three integers:");
scanf("%d%d%d",&a,&b,&c);
if(a>=b)
if(b>=c)
printf("The number from small to large sort is:%d>%d>%d\n",a,b,c);
else
printf("The number from small to large sort is:%d>%d>%d\n",a,c,b);
else if(b>=a)
if(a>=c)
printf("The number from small to large sort is:%d>%d>%d\n",b,a,c);
else
printf("The number from small to large sort is:%d>%d>%d\n",b,c,a);
else if(c>=a)
if(a>=b)
printf("The number from small to large sort is:%d>%d>%d\n",c,a,b);
else
printf("The number from small to large sort is:%d>%d>%d\n",c,b,a);
}

你的程序逻辑判断上有问题
你检查下if(a>=b)这个语句里面的if-else语句：
如果a>=b,在b>=c不成立时,并不能说明a>=c>=b
再问：请问，怎么修改
再答：你把逻辑理清就行了：#include<stdio.h>
int main()
{
    int a,b,c;
    printf("Please input three integers:");
    scanf("%d%d%d",&a,&b,&c);
    if(a>=b)
        if(b>=c)
            printf("The number from small to large sort is:%d>=%d>=%d\n",a,b,c);
        else if(a>=c)
            printf("The number from small to large sort is:%d>=%d>=%d\n",a,c,b);
        else
            printf("The number from small to large sort is:%d>=%d>=%d\n",c,a,b);
    else/* if(b>=a)*/
        if(a>=c)
            printf("The number from small to large sort is:%d>=%d>=%d\n",b,a,c);
        else if (b>=c)
            printf("The number from small to large sort is:%d>=%d>=%d\n",b,c,a);
        else
            printf("The number from small to large sort is:%d>=%d>=%d\n",c,b,a);
/*
    else if(c>=a)
        if(a>=b)
            printf("The number from small to large sort is:%d>=%d>=%d\n",c,a,b);
        else
            printf("The number from small to large sort is:%d>=%d>=%d\n",c,b,a);
*/
}

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