NSString 大小写 总结

改变字符串的大小写
  

NSString *string1 = @"A String";

    NSString *string2 = @"string hu";

    NSLog(@"string1:%@",[string1 uppercaseString]);//uppercaseString返回转换为大写的字符串

    NSLog(@"string2:%@",[string2 lowercaseString]);//lowercaseString返回转换为小写的字符串

    NSLog(@"string2:%@",[string2 capitalizedString]);//capitalizedString返回每个单词首字母大写的字符串

2012-11-04 15:46:48.203 Untitled[30998:707] string1:A STRING
2012-11-04 15:46:48.205 Untitled[30998:707] string2:string hu
2012-11-04 15:46:48.205 Untitled[30998:707] string2:String Hu