<div id="a"><div id="b"></div></div>
JS代码为:
document.getElementById('a').addEventListener('click', e => {console.log(1)}); document.getElementById('b').addEventListener('click', e => {e.preventDefault();console.log(2)});当点击id为b的div时,控制台输出的内容是:
document.getElementById('a').addEventListener('click', e => {console.log(1)}); document.getElementById('b').addEventListener('click', e => {e.preventDefault();console.log(2)});当点击id为b的div时,控制台输出的内容是:
1
2
2
1
1
2