Clicking the Make Visibility Dynamic button creates a Visibility variable. 按一下按鈕，使能見度動態創建一個可見變數。
In order to reduce memory consumption and increase running efficiency, most forms are established by means of dynamic technique. 為了減少系統資源的消耗和提高程序的運行效率，大多數窗體採用了動態創建的方法。
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