调整画布bug

src/component/Detail/addDetails.vue

@@ -184,10 +184,13 @@ export default defineComponent({
 				keyDown = keyDown.filter(function(item) {
 					return event.code !== item;
 				})
+				
 			}
 		let clearCanvas = ()=>{
 		    canvasBtn.canvasState = 'move'
 		    canvasBtn.spreadState = false
+			document.removeEventListener("keydown", canvasKeyDown);
+			document.removeEventListener("keyup", canvasKeyUp);
 		}
 		let rgba = 'rgba(0, 0, 0, 1)'
 		let brushIndicator = new fabric.Circle({