1）、缓冲区中预放了一些字母2）、运行时,可按照屏幕上显示的字母输入练习3）、当按结束,可显示出练习输入的时间,并且能显示出正确率。4）、要求界面美观-1), the buffer zone in the pre-release a number of letters 2), run-time, in accordance with the letters displayed on the screen input practice 3), when by the end of practice

this file is for time zone setting

可以获取计算及设置的时区，使程序在其他时区不会出错-Access to computing and the time zone settings, so that procedures in other time zones will not go wrong

1）、缓冲区中预放了一些字母2）、运行时,可按照屏幕上显示的字母输入练习3）、当按结束,可显示出练习输入的时间,并且能显示出正确率。4）、要求界面美观-1), the buffer zone in the pre-release a number of letters 2), run-time, in accordance with the letters displayed on the screen input practice 3), when by the end of practice