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 const file = e.target.files[0] // 方式1 const url1 = window.URL.createObjectURL(file); let url2 // 方式2 const reader = new FileReader(); reader.onload = (e) => { url2 = e.target.result; }; reader.readAsDataURL(file); 

 if (navigator.geolocation){ navigator.geolocation.getCurrentPosition((position) => { this.geolocation = `latitude:${position.coords.latitude},longitude:${position.coords.longitude}` }, (err) => { console.log(err); }, { enableHighAccuracy: true, maximumAge : 30000, // buffer memory timre timeout : 27000 // waiting time }) } else { alert('geolocation not supported!') } 

 window.addEventListener('deviceorientation',(doe) => { this.absolute = doe.absolute //false 表示方向数据由设备本身坐标系提供 this.alpha = doe.alpha // 绕Z轴0-360 进入时手机水平正对的方向为0或360 this.beta = doe.beta // 绕X轴-180~180 描述由前向后旋转 this.gamma = doe.gamma // 绕Y轴-90~90 描述由左向右旋转 }, true) // chrome v65 只支持accelerationIncludingGravity和interval（应该因为一些限制没有找到），其它浏览器最新版基本都支持 window.addEventListener('devicemotion', (dme) => { this.acceleration = dme.acceleration this.accelerationIncludingGravity = dme.accelerationIncludingGravity this.rotationRate = dme.rotationRate this.interval = dme.interval }, false) 

锁住它!

 // 简单示例，将鼠标锁定在 pointer-lock-element 元素内 let = document.getElementById("pointer-lock-element"); document.addEventListener("mousemove", function(e) { var movementX = e.movementX movementY = e.movementY // 打印鼠标移动的增量值。 console.log("X=" + movementX, "Y=" + movementY); }, false); function lockPointer() { elem = document.getElementById("pointer-lock-element"); elem.requestPointerLock = elem.requestPointerLock || elem.mozRequestPointerLock || elem.webkitRequestPointerLock; elem.requestPointerLock(); }