摘要: 1.判断邮箱格式是否正确的代码://利用正则表达式验证-(BOOL)isValidateEmail:(NSString*)email{NSString*emailRegex =@"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";NSPredicat... 阅读全文
posted @ 2014-05-18 19:35 ejllen 阅读(165) 评论(0) 推荐(0) 编辑
摘要: 一个基本的该类型字符串例子:@"This is a constant character string object";在后台显示它:NSLog (@"%@", @"This is a constant character string object");得到其长度:int len = [@"Hel... 阅读全文
posted @ 2014-05-18 16:58 ejllen 阅读(257) 评论(0) 推荐(0) 编辑