"iOS development problem" using nscoding to write to local files cannot be read or files not written locally

Source: Internet
Author: User

When I write my personal address book today, I find a half-day file write location,
"Detailed location reference
http://blog.csdn.net/ttf1993/article/details/45154349
When I found my location, I found that the contact was not written locally.
And then I found the reason because the following line of code

NSStringYES) lastObject];    // 2.2.获得文件的全路径    NSString *path = [doc stringByAppendingPathComponent:@"contacts.data"];

It is because of the above nsdocumentationdirectory This parameter problem, the default is to find documentation this folder, but iOS does not write to the disk.
Later changed to read also can not take, reason or this sentence, after the change to all OK

"iOS development problem" using nscoding to write to local files cannot be read or files not written locally

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