Object

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Object

犀利吐槽

1.同样都是“文件和目录操作",java中，就用java.util.File一个类，就封装了很多API，而Object-C搞了这么多类和函数。具体原因，有待分析啊。

2.明明是NSString，字符串操作，怎么出现了”pathComponents“等操作文件路径相关的方法，很奇怪的赶脚。

3.stringByAppendingString，这函数的名字有点长啊。

4.总体感觉，Object-C的语法比Java复杂一些，码代码的效率低了不少。

/
//  main.m
//  FilePathUtil
//
//  Created by fansunion on 15/11/29.
//  Copyright (c) 2015年 demo. All rights reserved.
//#import <Foundation/Foundation.h>//演示文件路径API
int main(int argc, const char * argv[]) {@autoreleasepool {NSString *fileName =@"path.m";NSFileManager *fm;NSString *path,*tempDir,*extention,*homeDir,*fullPath;NSArray *components;fm =[NSFileManager defaultManager];//临时目录tempDir = NSTemporaryDirectory();NSLog(@"The tempDir is %@",tempDir);//提取基本目录path =[fm currentDirectoryPath];NSLog(@"The base dir is %@",[path lastPathComponent]);//fileName在当前目录中的完整路径//这个地方有个问题//本地输出”/Users/fansunion/Library/Developer/Xcode/DerivedData/FilePathUtil-bvzjqehotbexooebruphtwcmqekz/Build/Products/Debugpath.m“//Debug和path.m之间没有”分隔符“/"，而书本中的例子是有的//最好还是手动加上，Java中也是没有这个分隔符，需要手动加上的fullPath =[path stringByAppendingString:fileName];NSLog(@"The fullPath is %@",fullPath);//获得文件扩展名extention = [fullPath pathExtension];NSLog(@"The extentions is %@",extention);//获得用户的主目录homeDir = NSHomeDirectory();NSLog(@"The home directory is %@",homeDir);//拆分路径为各个组成部分components = [homeDir pathComponents];for(path in components){NSLog(@"%@",path);}}return 0;
}

程序输出

2015-11-29 13:43:30.550 FilePathUtil[2861:179163] The tempDir is /var/folders/4q/5ylpds9n5n97bq_r41qvly4w0000gn/T/

2015-11-29 13:43:30.551 FilePathUtil[2861:179163] The base dir is Debug

2015-11-29 13:43:30.551 FilePathUtil[2861:179163] The fullPath is /Users/fansunion/Library/Developer/Xcode/DerivedData/FilePathUtil-bvzjqehotbexooebruphtwcmqekz/Build/Products/Debugpath.m

2015-11-29 13:43:30.551 FilePathUtil[2861:179163] The extentions is m

2015-11-29 13:43:30.552 FilePathUtil[2861:179163] The home directory is /Users/fansunion

2015-11-29 13:43:30.552 FilePathUtil[2861:179163] /

2015-11-29 13:43:30.552 FilePathUtil[2861:179163] Users

2015-11-29 13:43:30.553 FilePathUtil[2861:179163] fansunion

Program ended with exit code: 0

本文标签： object