创建plist并写入

1. 创建一个plist文件

NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);

NSString *path=[paths    objectAtIndex:0];

NSLog(@"path = %@",path);

NSString *filename=[path stringByAppendingPathComponent:@"test.plist"];    //文件的完整路径

NSFileManager* fm = [NSFileManager defaultManager];

[fm createFileAtPath:filename contents:nil attributes:nil];      //根据完整路径创建文件

2. 创建一个dic，写到plist文件里

NSDictionary* dic = [NSDictionary dictionaryWithObjectsAndKeys:@"sina",@"1",@"163",@"2",nil];

[dic writeToFile:filename atomically:YES];

3. 读文件内容

NSDictionary* dic2 = [NSDictionary dictionaryWithContentsOfFile:filename];

NSLog(@"dic is:%@",dic2);