var events = navigator.userAgent; if(events.indexOf('Android')>-1 || events.indexOf('Linux')>-1 || events.indexOf('Adr')>-1){        console.log("安卓手机");    }else if(events.indexOf('iPhone')>-1){        //根据尺寸进行判断 苹果的型号        if(screen.height == 812 && screen.width == 375){
    // 进行操作，改变样式

const obj = document.getElementById('sendxBtn')

obj.setAttribute("style", "padding:5px 10px 20px;")

console.log("苹果X");        }else if(screen.height == 736 && screen.width == 414){            console.log("iPhone7P - iPhone8P - iPhone6");        }else if(screen.height == 667 && screen.width == 375){            console.log("iPhone7 - iPhone8 - iPhone6");        }else if(screen.height == 568 && screen.width == 320){            console.log("iPhone5");        }else{            console.log("iPhone4");        }    }else if(events.indexOf('Windows Phone')>-1){        console.log("诺基亚手机");            }else if(events.indexOf("iPad")>-1){        console.log("平板");    }