单项选择题
A.align B.alignment C.sorted D.value
A.选择图片框,然后按Del B.执行语句picture1.picture=loadpicture("") C.执行语句picture1.picture="" D.选择图片框,在属性窗口中选择picrure属性条,然后按回车键
A.value B.default C.cancel D.enabled
A.picture="pic1.jpg" B.pictrure.handle="pic1.jpg" C.picture1.picture=loadpicture("pic1.jpg") D.picture=loadpicture("pic1.jpg")
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