Values 8, 9, 10, and 13 convert to backspace, tab, linefeed, and carriage return characters, respectively. They have no graphical representation, but depending on the application, may affect the visual display of text.
Not supported on the current platform.
參考答案:(ASCII码)数值 8 , 9 , 10 和 13 分别对应于退格(backspace)，缩进(tab)，换行(linefeed)和回车(carriage return)这些(控制)字符。它们没有相应的字符外观，但是可以按照软件的定义来控制文本的显示。
当前平台尚不支持。