//path 读取当前程序定义好的provinces.plist省份城市文件

//array数组的名称就叫province

NSString *path = [[NSBundle mainBundle] pathForResource:@"provinces" ofType:@"plist"];

NSDictionary *data = [NSDictionary dictionaryWithContentsOfFile:path];

self.provincesContent = [NSArray arrayWithArray:[data objectForKey:@"province"]];

//沙盒路径plist文件的读取。

//注意，如果想添加新的数据，需要NSMutable类型的

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

NSString *path =  [patharray objectAtIndex:];

NSString *filepath=[path stringByAppendingPathComponent:@"provinces.plist"];

NSMutableArray *rootArray = [NSMutableArray arrayWithContentsOfFile:filepath];