简单的c语言程序编写求助……1． 从键盘上任意输入3 个整数x、y、z，并按从大到小的顺序显示出来，请编写该程序。要求：

#include
int main(int argc, char **argv)
{
int x = 0, y = 0, z = 0;
int temp = 0;

printf("Please enter 3 integer:");
scanf("%d,%d,%d", &x, &y, &z);

if(x < y){
temp = x;
x = y;
y = temp;
}

if(x < z){
temp = x;
x = z;
z = temp;
if(z > y){
temp = y;
y = z;
z = temp;
}
}

if(y < z){
temp = y;
y = z;
z = temp;
}

printf("x=%d, y=%d, z=%dn", x, y, z);

return 0;
}
#include
int main(int argc, char **argv)
{
char ch;
//scanf("%c", &ch);
ch = getchar();
switch(ch){
case 'a':
case 'A':
case 'e':
case 'E':
case 'i':
case 'I':
case 'o':
case 'O':
case 'u':
case 'U':
printf("是元音字母n");
break;
default:
printf("不是元音字母n");
}
return 0;
}