长字符串赋值怎么换行，要简单方便

长字符串赋值如何换行，要简单方便！
比如有一长串的字符如下，要给字符串变量str赋值，如何变成多行，我看有些用+号连接乱乱的,眼睛都花，
用什么方法简单明了点，

str:=“select NAME as '姓名',SEX as '性别',AGE as '年龄',XB as '系别'”

[解决办法]

Delphi(Pascal) code

  str := 'select NAME as ''姓名'',' +                'SEX as ''性别'','  +                'AGE as ''年龄'','  +                'XB as ''系别''';
[解决办法]
探讨

Delphi(Pascal) code
  str := 'select NAME as ''姓名'',' +
                'SEX as ''性别'','  +
                'AGE as ''年龄'','  +
                'XB as ''系别''';