检索文件中的总行数 [英] Retrieving total line numbers in a file

问题描述

有人可以告诉我如何使用编程语言 C 获取文本文件中的总行数吗?

can someone show me how to get the total number of lines in a text file in programming language C?

推荐答案

这是一种方法:

FILE* myfile = fopen("test.txt", "r");
int ch, number_of_lines = 0;

do 
{
    ch = fgetc(myfile);
    if(ch == '
')
        number_of_lines++;
} while (ch != EOF);

// last line doesn't end with a new line!
// but there has to be a line at least before the last line
if(ch != '
' && number_of_lines != 0) 
    number_of_lines++;

fclose(myfile);

printf("number of lines in test.txt = %d", number_of_lines);

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