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浏览器自带的window.print 功能较简单，这里使用LODOP露肚皮打印
以下是vue2示例：

1. 从官网中下载Lodop和C-Lodop官网主站安装包并安装到本地电脑
2. 可以全局搜索电脑找到安装文件LodopFuncs.js，也可以直接复制我贴出来的文件

   
   //用双端口加载主JS文件Lodop.js(或CLodopfuncs.js兼容老版本)以防其中某端口被占:
   var MainJS ="CLodopfuncs.js",URL_WS1   = "ws://localhost:8000/"+MainJS,                //ws用8000/18000URL_WS2   = "ws://localhost:18000/"+MainJS,URL_HTTP1 = "http://localhost:8000/"+MainJS,              //http用8000/18000URL_HTTP2 = "http://localhost:18000/"+MainJS,URL_HTTP3 = "https://localhost.lodop.net:8443/"+MainJS;   //https用8000/8443//==检查加载成功与否，如没成功则用http(s)再试==
   //==低版本CLODOP6.561/Lodop7.043及前)用本方法==
   function checkOrTryHttp() {if (window.getCLodop)  return true;var head = document.head || document.getElementsByTagName("head")[0] || document.documentElement;var JS1 = document.createElement("script"),JS2 = document.createElement("script"),JS3 = document.createElement("script");JS1.src = URL_HTTP1;JS2.src = URL_HTTP2;JS3.src = URL_HTTP3;JS1.onerror = function(e) {if (window.location.protocol !== 'https:')head.insertBefore(JS2, head.firstChild); elsehead.insertBefore(JS3, head.firstChild);}JS2.onerror = JS3.onerror=function(){var JSelf = document.createElement("script");JSelf.src = "/"+MainJS; //JSelf让其它电脑通过本机打印（仅适用CLodop自带例子）document.head.insertBefore(JSelf, document.head.firstChild);}head.insertBefore(JS1,head.firstChild);
   }//==加载Lodop对象的主过程:==
   (function loadCLodop(){if (!window.WebSocket && window.MozWebSocket) window.WebSocket=window.MozWebSocket;//ws方式速度快(小于200ms)且可避免CORS错误,但要求Lodop版本足够新:try {var WSK1=new WebSocket(URL_WS1);WSK1.onopen = (e) => { setTimeout(() => { checkOrTryHttp() },200); }WSK1.onmessage = function(e) {if (!window.getCLodop) eval(e.data);}WSK1.onerror = function (e) {var WSK2=new WebSocket(URL_WS2);WSK2.onopen = function (e) { setTimeout(() => { checkOrTryHttp() },200);}WSK2.onmessage = function(e) {if (!window.getCLodop) eval(e.data);}WSK2.onerror= (e)=> {checkOrTryHttp();}}} catch (e) {checkOrTryHttp();}
   })();//==获取LODOP对象的主过程:==
   export function getLodop(oOBJECT, oEMBED) {var LODOP;try {LODOP = window.getCLodop();if (!LODOP && document.readyState !== "complete") {alert("C-Lodop没准备好，请稍后再试！");return;}//清理原例子内的object或embed元素，避免乱提示：if (oEMBED && oEMBED.parentNode)  oEMBED.parentNode.removeChild(oEMBED);if (oOBJECT && oOBJECT.parentNode)oOBJECT.parentNode.removeChild(oOBJECT);return LODOP;} catch (err) {alert("getLodop出错:" + err);}
   }

3. 参考常见问答 - Lodop打印控件官方网站在vue中使用lodop

4. 最重要的，打印初始化数据需要为每个事件设置不同的任务id
    

   this.LODOP.PRINT_INIT(`TaskID${this.printType}`);

   官网文档中有描述：
   
   这样不同的按钮/功能就能每次调用不同的默认打印机了。