摘要: 温故知新,常用常新//1、创建常量字符串。NSString *astring = @"This is a String!";//2、创建空字符串,给予赋值。NSString *astring = [[NSString alloc] init]; astring = @"This is a Strin... 阅读全文
posted @ 2015-03-09 15:39 Nbox1989 阅读(111) 评论(0) 推荐(0) 编辑