停止的fscanf？

问题描述

我在写学校一年级的书计划，我感到困惑的一件事。我们有一个文件从具有多个学生ID和多个分数来读取。请问这样做：

  =结果的fscanf（成绩册，％D％D，ID，SCO1，SCO2，sco3）;
 

存储号码到这些变量，因为它读取然后停止光标当它运行的变量来存储中的信息？......那么我应该直接进入计算功能面前来计算最终成绩是循环的fscanf下一个学生？

  =结果的fscanf（成绩册，％D％D，ID，SCO1，SCO2，sco3）;
          getCalc（SCO1，SCO2，sco3）;
 

是允许的？谢谢你的帮助。

解决方案

No, unless it is in a while loop, it stops exactly after reading the four entries ONCE, unless you are using the value from results to control a while loop and call fscanf() multiple times to scan 4 entries at every call.

Example:-

//Keeps reading unless it encounters less than 4 parameters, which might be the case
//if an end of file is reached, or your data pattern changes.

while(  fscanf(gradebook, "%d %d %d %d", id, sco1, sco2, sco3) == 4 )
{
 //You can pass the data of individual id, to calculate function, and compute the required
 //sum, total or other data locally in the function, there is really no reason to use pass
 //address in your case, so just transfer data using pass by value method. 
 getCalc(id,sco1,sco2,sco3);   
}

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