
在C编程语言中,程序员可以访问文件并读写其中的内容。
文件是一个简单的内存块,可以存储信息,我们只关心文本。
在这个程序中,我们将比较两个文件并报告发生的不匹配。这些文件几乎相同,但可能有一些字符不同。此外,程序将返回第一个不匹配发生的文件的行和位置。
算法
Step 1: Open both the file with pointer at the starting.
Step 2: Fetch data from file as characters one by one.
Step 3: Compare the characters. If the characters are different then return the line and position of the error character.
Example
的中文翻译为:示例
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
void compareFiles(FILE *file1, FILE *file2){
char ch1 = getc(file1);
char ch2 = getc(file2);
int error = 0, pos = 0, line = 1;
while (ch1 != EOF && ch2 != EOF){
pos++;
if (ch1 == '' && ch2 == '
'){
line++;
pos = 0;
}
if (ch1 != ch2){
error++;
printf("Line Number : %d Error"
" Position : %d
", line, pos);
}
ch1 = getc(fp1);
ch2 = getc(fp2);
}
printf("Total Errors : %d ", error);
}
int main(){
FILE *file1 = fopen("file1.txt", "r");
FILE *file2 = fopen("file2.txt", "r");
if (file1 == NULL || file2 == NULL){
printf("Error : Files not open");
exit(0);
}
compareFiles(file1, file2);
fclose(file1);
fclose(file2);
retur
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