进入页面自动获取页面宽度：
?
mounted() {
var that = this;
console.log('页面进入时的宽度：',document.body.clientWidth)
if(document.body.clientWidth<768){
this.dialogWidth='100%'
}
},动态获取页面宽高
mounted() {
var that = this;
// <!--把window.onresize事件挂在到mounted函数上-->
window.onresize = () => {
return (() => {
window.fullHeight = document.documentElement.clientHeight;
window.fullWidth = document.documentElement.clientWidth;
that.windowHeight = window.fullHeight; // 高
that.windowWidth = window.fullWidth; // 宽
})()
};
},
watch:{
windowHeight (val) {
let that = this;
console.log("实时屏幕高度：",val, that.windowHeight );
},
windowWidth (val) {
let that = this;
if(val<768){
that.dialogWidth='100%'
}else{
that.dialogWidth='75%'
}
console.log("实时屏幕宽度：",val, that.windowHeight );
}
}
