#include<stdio.h>
void fun(float*x,float*y,float*z)
{
    float k;
    if(*x>*y)
    {
        if(*y<*z)
        {
            if(*z>*x)
                k=*x;*x=*z;*z=*y;*y=k;
            else k=*z;*z=*y;*y=k;
        }
        else *x=*x;*y=*y;*z=*z;
    }
    else
    {
        if(*y>*z)
        {
            if(*x>*z)
                k=*x;*x=*y;*y=k;
            else k=*x;*x=*y;*y=*z;*z=k;
        }
        else k=*x;*x=*z;*z=k;
    }
}
void main()
{
    float a,b,c;
    printf("请输入三个数:\n");
    scanf("%f%f%f\n",&a,&b,&c);
    printf("a=%f b=%f c=%f\n",a,b,c);
    fun(&a,&b,&c);
    printf("a=%f b=%f c=%f\n",a,b,c);
}

--------------------Configuration: c语言 - Win32 Debug--------------------
Compiling...
1.cpp
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(11) : error C2181: illegal else without matching if
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(21) : error C2181: illegal else without matching if
执行 cl.exe 时出错.

1.obj - 1 error(s), 0 warning(s)
为什么说1.cpp(11) : error C2181: illegal else without matching if
1.cpp(21) : error C2181: illegal else without matching if
求教高手，谢谢

谢谢

#include<stdio.h>
int fun(int n)
{
    int i,s;
    for（i=2;i<n;i++)
    {
        if(n%i==0）
            s=s+i;
    }
    return(s);
}
void main()
{
    int a;
    printf("请输入要求的数:");
    scanf("%d",&a);
    printf("正整数%d的所有因子之和为:%d",a,fun(a));

}
请教上述程序为何会出现以下错误 ?

Compiling...
1.cpp
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(5) : error C2018: unknown character '0xa3'
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(5) : error C2018: unknown character '0xa8'
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(5) : error C2061: syntax error : identifier 'i'
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(5) : warning C4552: '<' : operator has no effect; expected operator with side-effect
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(5) : error C2059: syntax error : ')'
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(6) : error C2143: syntax error : missing ';' before '{'
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(7) : error C2018: unknown character '0xa3'
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(7) : error C2018: unknown character '0xa9'
C:\Users\Administrator\Desktop\lx\c语言\1.cpp(8) : error C2146: syntax error : missing ')' before identifier 's'
执行 cl.exe 时出错.

1.obj - 1 error(s), 0 warning(s)