目标c：如何只删除目录下的所有文件，但保留目录本身 [英] Objective c: How to only delete all file under a directory but keep the directory itself

问题描述

我发现下面的代码删除了objective-c中的文件，但我只想删除 Caches 目录下的所有文件并保留目录缓存本身。

I found the code below to delete file in objective-c, but I want to only delete all files under directory of Caches and keep the directory Caches itself.

有人会建议这样做的方法吗？

Could someone suggest the method to do that?

谢谢

NSFileManager *filemgr;

filemgr = [NSFileManager defaultManager];

if ([filemgr removeItemAtPath: [NSHomeDirectory() stringByAppendingString:@"/Library/Caches"] error: NULL]  == YES)
        NSLog (@"Remove successful");
else
        NSLog (@"Remove failed");

更新

NSFileManager *filemgr;

filemgr = [NSFileManager defaultManager];

if ([filemgr removeItemAtPath: [NSHomeDirectory() stringByAppendingString:@"/Library/Caches"] error: NULL]  == YES)
    NSLog (@"Remove successful");
else
    NSLog (@"Remove failed");

[filemgr createDirectoryAtPath: [NSHomeDirectory() stringByAppendingString:@"/Library/Caches"] withIntermediateDirectories:NO attributes:nil error:nil];

推荐答案

循环遍历该目录中的文件。

Loop through the files in that directory.

NSFileManager *fileMgr = [NSFileManager defaultManager];
NSArray *fileArray = [fileMgr contentsOfDirectoryAtPath:directory error:nil];
for (NSString *filename in fileArray)  {

    [fileMgr removeItemAtPath:[directory stringByAppendingPathComponent:filename] error:NULL];
}

这篇关于目标c：如何只删除目录下的所有文件，但保留目录本身的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！