我正在尝试读取文件,然后按字符输出文件。我希望用户输入一个数字,该数字将是要显示的行数。
如果没有以下行,我的代码将显示整个文本文件。if (y == lineCount) 中断;
当计算的换行字符数等于用户输入的数字时,该行应该中断循环。
我可以计算 newLine 字符的数量并显示它,但是当我在达到一定数量的 newLines 后尝试中断循环时,代码在 1 个字符后中断
#include <stdio.h>
int main ( int argc, char *argv[] )
{
FILE *file = fopen( argv[1], "r" );
int lineCount, x, y;
printf("enter a number of lines of lines to be displayed\n");
scanf("&d", &y);
while ( ( x = fgetc( file )) != EOF ) //read characters
{
printf( "%c", x ); //print character
if (x == '\n') //check for newline character
lineCount++;
if (y == lineCount) //check for newLine character
break; //??? y = lineCount after 1 character???
}
printf( "%d lines in the text file\n", lineCount ); //testing the newline characters was being read
fclose( file );
}