我希望tk代码删除以下小部件.它毁灭了吗？
Entry .scW.sf.frame.entry -background "#ffffff"
Button .scW.sf.frame.Button -command "open"
grid .scW.sf.frame.entry -in .scW.sf.frame -row 17 -column 2 -sticky ""
grid .scW.sf.frame.Button -in .scW.sf.frame -row 17 -column 3 -sticky "w"