犀利吐槽

1.同樣都是“文件和目錄操作",java中，就用java.util.File一個類，就封裝了很多API，而Object-C搞了這么多類和函數。具體原因，有待分析啊。

2.明明是NSString，字符串操作，怎么出現了”pathComponents“等操作文件路徑相關的方法，很奇怪的趕腳。

3.stringByAppendingString，這函數的名字有點長啊。

4.總體感覺，Object-C的語法比Java復雜一些，碼代碼的效率低了不少。

/ / // main.m // FilePathUtil // // Created by fansunion on 15/11/29. // Copyright (c) 2015年 demo. All rights reserved. //#import <Foundation/Foundation.h>//演示文件路徑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];//臨時目錄tempDir = NSTemporaryDirectory();NSLog(@"The tempDir is %@",tempDir);//提取基本目錄path =[fm currentDirectoryPath];NSLog(@"The base dir is %@",[path lastPathComponent]);//fileName在當前目錄中的完整路徑//這個地方有個問題//本地輸出”/Users/fansunion/Library/Developer/Xcode/DerivedData/FilePathUtil-bvzjqehotbexooebruphtwcmqekz/Build/Products/Debugpath.m“//Debug和path.m之間沒有”分隔符“/"，而書本中的例子是有的//最好還是手動加上，Java中也是沒有這個分隔符，需要手動加上的fullPath =[path stringByAppendingString:fileName];NSLog(@"The fullPath is %@",fullPath);//獲得文件擴展名extention = [fullPath pathExtension];NSLog(@"The extentions is %@",extention);//獲得用戶的主目錄homeDir = NSHomeDirectory();NSLog(@"The home directory is %@",homeDir);//拆分路徑為各個組成部分components = [homeDir pathComponents];for(path in components){NSLog(@"%@",path);}}return 0; }

程序輸出

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

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