当你改变任何一个滚动条的值时，窗体的背景颜色将会改变，以匹配选择的值。

As you change the value of any of these, the background color of the form changes to match the selected values.

youdao

当你改变任何一个滚动条的值时，窗体的背景颜色将会改变，以匹配选择的值。

As you change the value of any of these, the background color of the form changes to match the selected values.

youdao