在iPhone项目中加载数据文件 [英] Loading data files in iPhone project

问题描述

如何在iPhone项目中读取数据文件？例如，假设我有一个名为level.dat的静态文件，结构如下：
障碍：10
时间：100
障碍1：10,20
。 ..

How does one read a data file in an iPhone project? For example, lets say I have a static file called "level.dat" that is structured as follows: obstacles: 10 time: 100 obstacle1: 10,20 ...

我想读取文件的内容到NSString然后做解析。如何将文件的内容读入字符串？另外，在项目中level.dat文件应驻留在哪里？

I would like to read the contents of the file into a NSString then do the parsing. How do I read the contents of a file into a string? Also, where in the project should the "level.dat" file reside? Should it be under "Resources" or just in the main directory?

推荐答案

方案

查看此答案：如何在iPhone上fopen（） ？，显示如何访问您的捆绑包中的资源。一旦你有了路径，只需使用[NSString stringWithContentsOfFile：encoding：error：]。

See this answer: How to fopen() on the iPhone? which shows how to get access to resources in your bundle. Once you have the path, just use [NSString stringWithContentsOfFile:encoding:error:].

NSString   *path = [[NSBundle mainBundle] pathForResource: @"level" ofType: @"dat"]
NSError    *error = nil;
NSString   *data = [NSString stringWithContentsOfFile: path 
                                             encoding: NSUTF8StringEncoding 
                                                error: &error];

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