Visual C ++使用scanf从文本文件中读取数据 [英] Visual C++ reading data from text file using scanf

问题描述

以下代码未从bn1.txt读取数据

following code is not reading data from bn1.txt

FILE * gdata;

FILE *gdata;

gdata = fopen（

gdata=fopen(

" ; bn1.txt" ， " r" ）;

"bn1.txt","r");

fscanf（gdata，

fscanf(gdata,

< span style ="co LOR：＃a31515; font-size：small"> "％d \ n" ，& m1）;

"%d\n",&m1);

for （n = 0; n< ; m1; n ++）{

for( n=0;n<m1;n++) {

fscanf（gdata，

fscanf(gdata,

"％f ％f％f \ n" ，& x1 [n ]，& y1 [n]，& z1 [n]）;

"%f %f %f\n",&x1[n],&y1[n],&z1[n]);

printf（

"％f％f％f \ n" ，x1 [n]，y1 [n]，z1 [n]）;

"%f %f %f\n",x1[n],y1[n],z1[n]);

  }

fclose（gdata）;

fclose(gdata);

推荐答案

什么是fscanf返回？

What is fscanf returning?

此外，每当您使用fscanf读取换行符时，请尝试执行fflush。有时新行会卡住，你需要刷新输入缓冲区才能继续阅读。

Also, whenever you read a newline using fscanf try doing an fflush. Sometimes the newline gets stuck and you need to flush the input buffer to continue reading.

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