本程序使用匿名类来设计记录鼠标的位置，当拖拽鼠标后在文本框中显示鼠标的位置，当鼠标离开窗口后在文本框中显示鼠标离开， 当鼠标进入窗口后在文本框中显示鼠标进入。-This program uses the anonymous class to design the record mouse position, when the mouse after dragging the mouse in the text box shows the location, when the mouse le