C语言简单的文件操作为何老是输出乱码

C/C++ code

#include<stdio.h>void main(){    FILE *f;    char c;    printf("INPUT DATA:");    f = fopen("INPUT","w");    while((c=getchar() != EOF))    {        putc(c,f);    }    fclose(f);    printf("DATA OUTPUT:");    f = fopen("INPUT","r");    while((c=getc(f) != EOF))    {        printf("%c",c);    }    fclose(f);}

上面的代码，个人看了好长时间，觉得没什么问题唉！但是输出时就是会显示乱码，求指教

[解决办法]
while((c=getchar() != EOF))
while((c=getc(f) != EOF))
这两句写错了，，括号写错位置了
改为：
while((c=getchar()) != EOF)
while((c=getc(f)) != EOF)
[解决办法]
while((c=getchar()) != EOF)
[解决办法]

C/C++ code

  1 #include <stdio.h>  2 int main()  3 {  4     FILE *f;  5     char c;  6     printf("INPUT DATA:");  7     f = fopen("INPUT","w");  8     while((c=getchar()) != EOF) //这里  9      { 10         putc(c,f); 11      } 12     fclose(f); 13     printf("DATA OUTPUT:"); 14     f = fopen("INPUT","r"); 15     while((c=getc(f)) != EOF)//这里 16     { 17        printf("%c",c); 18     } 19     fclose(f); 20  21     return 1; 22 }