You can declare and initialize a test variable, set its scope, and change its value.

您可以声明并初始化一个测试变量，设置它的范围，并更改它的值。

youdao

Can print out the test date, time and set the display value.

可打印出测试日期、时间及显示器设定显示值。

youdao

Can print out the test date, time and set the display value.

可打印出测试日期、时间及显示器设定显示值。

youdao