Question

编写比较两个文件是否相同的程序，若相同，输出“Compare OK!”;否则，输出“Not Equal”.

程序不需要太长 越简单越好~

Answer 1

#include<stadio.h>
void main()
{
int a,b,i,*p1,*p2,x=0;
char a[]="你要比较的文字或字符串1"；
char b[]="你要比较的文字或字符串2";
p1=a;
p2=b;
for(;p1!='\0',p2!='\0';p1++,p2++)
if(p1!=p2) x+=1;
if(x!=0) pringf(“Not Equal”);
if(x=0) pringf(“Compare OK!”);
}

采用C语言编写的，希望对你有用，还有你要注意字符格式，尽量不要复制，保证是英文小写

good luck！

Answer 2

#include<stdio.h>
#include<stdlib.h>
int main()
{
FILE *fp1,*fp2;
char szFile1[250];
char szFile2[250];
printf("please input filename 1: ");
scanf("%s",szFile1);
printf("\nplease input filename 2: ");
scanf("%s",szFile2);
fp1=fopen(szFile1,"r");
if(!fp1)
{ printf("error");
exit(1);}
fp2=fopen(szFile2,"r");
if(!fp2)
{ printf("error");
exit(1);}

//当然前面是废话，都是死的,下面是主要代码
char s1,s2;
while(!feof(fp1)||!feof(fp2))
{
s1=fgetc(fp1);
s2=fgetc(fp2);
if(s1!=s2)
{
printf("\nNot Equal!\n");
exit(1);
}
}
printf("\nCompare OK!\n");
return 0;
}

Answer 3

#include <stdio.h>

int main()
{
const char* file1 = "test1.txt";
const char* file2 = "test2.txt";
FILE* fin1 = fopen(file1, "r");
FILE* fin2 = fopen(file2, "r");

while (!feof(fin1) && !feof(fin2)) {
if (fgetc(fin1) != fgetc(fin2))
break;
}
if (feof(fin1) && feof(fin2))
printf("Compare OK!\n");
else
printf("Not Equal\n");

fclose(fin1);
fclose(fin2);
}