window.addEventListener('load', function() {
console.log('load')
})
window.addEventListener('pageshow', function(event) {
console.log('pageshow')
})
window.addEventListener('unload', function() {
console.log('unload')
})
window.addEventListener('pagehide', function(event) {
console.log('pagehide')
})
document.addEventListener('DOMContentLoaded', function() {
console.log('DOMContentLoaded')
})
document.addEventListener('readystatechange', function(e) {
console.log(document.readyState)
})
/*
if (document.readyState === 'complete') {
} else {
document.addEventListener('DOMContentLoaded', function(e) {
}, false);
}
*/
// addEventListener 无效
window.onbeforeunload = function() {
return '确认退出？'
}
