通过JavaScript判断终端类型

<script>
    
function browserRedirect() {
var curURL = window.location.href;
var sUserAgent = navigator.userAgent.toLowerCase();

var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
var bIsMidp = sUserAgent.match(/midp/i) == "midp";
var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
var bIsAndroid = sUserAgent.match(/android/i) == "android";
var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";

if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {
    // 移动端浏览器 
    document.write("phone");
    //移动端浏览器
    window.location.href = "https://m.jd.com/";
    // if (curURL.indexOf("jd.com") != -1) {
    //     window.location.href = "https://m.jd.com/";
    // }
} else {
    // PC端浏览器
    document.write("pc");
    //  if (curURL.indexOf("jd.com") != -1) {
        // window.location.href = "https://www.jd.com/";
    //   }
    }
}

browserRedirect()

</script>