法将在一个按钮被鼠标点击“按下”时被调用。 1publicvoidactionPerformed(ActionEvent ae) {23System.out.println("Button press received.");45System.out.println("Button's action command is: " +67ae.getActionCommand());89} 按钮被按下时调用的getActionCommand()方法在缺省情况下将返回标签字符串。用按...
Space Move the canvas around when held and moving the cursor Ctrl/Shift + Click Add clicked node to selection Ctrl + C/Ctrl + V Copy and paste selected nodes (without maintaining connections to outputs of unselected nodes) Ctrl + C/Ctrl + Shift + V Copy and paste selected nodes (maintain...