摘要：
转自http://blog.csdn.net/chuan403082010/article/details/51683309 //昵称 + (BOOL) validateNickname:(NSString *)nickname; //姓名一般只允许包含中文或英文字母 + (BOOL)isValid 阅读全文
摘要：
UIWindow * window = [UIApplication sharedApplication].windows[0]; UIView *backgroundView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, WIDTH, HEIGHT 阅读全文