好的，收到，我们看看哈～

自己定义了事件监听，做的
`
useEffect(() => {
document.onkeydown = hotKey
},[selectedNode, selectedEdge, cvs])

const hotKey = (event) => {
	const key = event.keyCode
	const ctrlKey = event.ctrlKey || event.metaKey
	const shiftKey = event.shiftKey
	if (ctrlKey) {
		event.preventDefault();
		if(shiftKey){
			switch(key){
				case 90: {
					cvs.redo();
					break;
				}
				case 76: {
					if(selectedNode?.id && selectedNode.options.readOnly){
						handleUnlock()//解锁
					}else if(selectedEdge &&  selectedEdge.options['readOnly']){
						handleUnlock()//解锁
					}
					break;
				}
			}
		}else{
			switch(key){
				case 68:{
					if(selectedNode?.id && !selectedNode.options.readOnly){
						cvs.removeNode(selectedNode?.id);
					}else if(selectedEdge &&  !selectedEdge.options['readOnly']){
						cvs.removeEdge(selectedEdge)
					}
					break;
				}
				case 76: {
					if(selectedNode?.id && !selectedNode.options.readOnly){
						handleLock()//锁定
					}else if(selectedEdge &&  !selectedEdge.options['readOnly']){
						handleLock()//锁定
					}
					break;
				}
				case 77: {
					setAddVisible(!addVisible)
					setRelatedVisible(false)
					break;
				}
				case 90:{
					cvs.undo();
					break;
				}
			}
		}
	}
}`