摘要:
1 atomically:原子性,当文件内容写入成功之后再创建文件。 2 3 NSArray *keys = [NSArray arrayWithObjects:@"name", @"age", nil]; 4 NSArray *values = [NSArray arrayWithObjects:@"wzx", [NSNumber numberWithInt:16], nil]; 5 NSDictionary *dict = [NSDictionary dictionaryWithObjects:values forKeys:key 阅读全文