左右两个列表框，中间是四个命令按钮，点击第一个，将左边列表框的内容全部移动到右边，第二个将选中的移到右边，第三个将右侧选中的移到左边，第四个将右侧全部移到左边。-Around the two list boxes, the middle is one of the four command button, click the first in a list box to the left of the contents of all the moving to the right, the second will be selected to the right, and the third will be moved to the right side of the selected the left, the fourth to the right of all to the left.