如何阅读和处理此类文件 [英] How can I read and process this kind of file

问题描述

I 12 0

I 9 1

I 26 0

I 25 2

B 26

P 0

R 25

A

所以，我需要做的是读取一个包含这些字符/数字的文件，每当我遇到一封信时，我都会调用一个函数来处理这封信后面的内容（又名数字）。
例如：
当读I时，我必须将函数调用到 INSERT 特定级别的跳过列表中的某个数字;或者在阅读B时，我需要在跳过列表等中搜索特定的数字。

So, what I need to do is read a file containing these characters/numbers and whenever I encounter a letter, I call a function to process whatever comes after the letter (aka the numbers). For example: When reading "I" I have to call the function to INSERT a certain number in a certain level of a Skip List; or when reading B, I need to search for a specific number in the Skip List, etc.

问题是我从文件中读取真的很糟糕，你能不能伙计们赐教我？

Problem is I'm really bad at reading from a file, can you guys enlighten me?

推荐答案

你可以用c，
i中的文件操作来做这个，我只是给你提示，

You can do this with file operations in c, i am just giving you hints,

FILE *pFilePtr; // file pointer(handle of file)

pFilePtr = fopen(argv[1],"r"); 

//define buffer to store data read line by line data
char buf[32]={0};

//Now you can run a while loop to read entire file

用fread（）获取整行第一行（直到'\ n'）

with fread() to get whole first line(until '\n')

while(!feof(pFilePtr))

{

if(NULL != fgets(buf,32,pFilePtr))

// perform string operation on buffer to extract letters and digits

// and according to that call functions you need

}

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