📅  最后修改于: 2022-03-11 15:02:17.860000             🧑  作者: Mango
//HTML document
Moving image
//Javascript
//getting the image node
const movingImage = document.querySelector('#movingImage');
//when the user presses any key, the 'document.body.onkeydown' function is called
//move the image inside that function
document.body.onkeydown = (e) => {
//handle the moving of image
//e has a property called key which states the name of the key pressed
switch(e.key){
case 'ArrowUp':
movingImage.offsetTop--;
break;
case 'ArrowLeft':
movingImage.offsetLeft--;
break;
case 'ArrowRight':
movingImage.offsetTop++;
break;
case 'ArrowDown':
movingImage.offsetLeft++-;
break;
}
}