删除文件对象

Question

我正在使用以下代码创建文件

NSString *docPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
NSString *filename = @"xyz123.data";
docPath = [NSString stringWithFormat:@"%@/%@", docPath, filename];

NSError *error = nil;
[data writeToFile:docPath options:0 error:&error];

要删除文件,我使用以下内容

NSFileManager *manager = [NSFileManager defaultManager];

NSError *error = nil;

NSString *path = @"xyz123.data";
//NSString *path = @"Documents/xyz123.data";
[manager path error:&error];

但是第一条路径和第二条路径似乎都不起作用,我总是得到错误"没有这样的文件或目录".

Answer 1

您NSHomeDirectory() stringByAppendingPathComponent在文件创建中使用,但在尝试删除文件时未在任一路径中使用.尝试:

[manager removeItemAtPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/xyz123.data"] error:&error]

Answer 2

试试这个:

NSString *docPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
NSString *filePath = [docPath stringByAppendingPathComponent:@"xyz123.data"];
NSError *error = nil;
[data writeToFile:filePath options:0 error:&error];
[[NSFileManager defaultManager] removeItemAtPath:filePath error:&error];