给你一个例子
function(w,h) {
var l=(screen.width-w)/2;
var t=(screen.height-h)/2;
window.resizeTo(w,h);
window.moveTo(l,t); //居中
function(w,h) {
var l=(screen.width-w)/2;
var t=(screen.height-h)/2;
window.resizeTo(w,h);
window.moveTo(l,t); //居中
MainFrame frame = new MainFrame();
//Validate frames that have preset sizes
//Pack frames that have useful preferred size info, e.g. from their layout
if (packFrame) {
frame.pack();
}
else {
frame.validate();
}
//Center the window
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Dimension frameSize = frame.getSize();
if (frameSize.height > screenSize.height) {
frameSize.height = screenSize.height;
}
if (frameSize.width > screenSize.width) {
frameSize.width = screenSize.width;
}
frame.setLocation(0, 0);
//frame.setLocation( (screenSize.width - frameSize.width) / 2,
// (screenSize.height - frameSize.height) / 2);
frame.setSize(screenSize.width, screenSize.height - 30);
frame.setVisible(true);
}