JsBarcode生成条形码
//js<script src="./js/jquery-1.4.4.min.js"></script><script src="./JsBarcode/JsBarcode.all.min.js"></script><script>$(function () {var code = "888888888888888";$("#imgcode").JsBarcode(code);})</script>//html<div class="code"><img id="imgcode" /></div>
qrcode生成二维码
//js<script src="./js/jquery-1.4.4.min.js"></script><script src="./js/qrcode.min.js"></script><script>$(function () {var qrcode = new QRCode("qrcode");qrcode.makeCode(code);})</script>//html<div class="code2" id="qrcode"> </div>
打印
vue中推荐使用print.js
使用方法：
将print.js放入static文件目录下然后照下面方法引用
print.js源码分享给懒癌晚期患者：
const Print = function (dom, options) {if (!(this instanceof Print)) return new Print(dom, options);this.options = this.extend({'noPrint': '.no-print'}, options);if ((typeof dom) === "string") {this.dom = document.querySelector(dom);} else {this.isDOM(dom)this.dom = this.isDOM(dom) ? dom : dom.$el;}this.init();};Print.prototype = {init: function () {var content = this.getStyle() + this.getHtml();this.writeIframe(content);},extend: function (obj, obj2) {for (var k in obj2) {obj[k] = obj2[k];}return obj;},getStyle: function () {var str = "",styles = document.querySelectorAll('style,link');for (var i = 0; i < styles.length; i++) {str += styles[i].outerHTML;}str += "<style>" + (this.options.noPrint ? this.options.noPrint : '.no-print') + "{display:none;}</style>";return str;},getHtml: function () {var inputs = document.querySelectorAll('input');var textareas = document.querySelectorAll('textarea');var selects = document.querySelectorAll('select');for (var k = 0; k < inputs.length; k++) {if (inputs[k].type == "checkbox" || inputs[k].type == "radio") {if (inputs[k].checked == true) {inputs[k].setAttribute('checked', "checked")} else {inputs[k].removeAttribute('checked')}} else if (inputs[k].type == "text") {inputs[k].setAttribute('value', inputs[k].value)} else {inputs[k].setAttribute('value', inputs[k].value)}}for (var k2 = 0; k2 < textareas.length; k2++) {if (textareas[k2].type == 'textarea') {textareas[k2].innerHTML = textareas[k2].value}}for (var k3 = 0; k3 < selects.length; k3++) {if (selects[k3].type == 'select-one') {var child = selects[k3].children;for (var i in child) {if (child[i].tagName == 'OPTION') {if (child[i].selected == true) {child[i].setAttribute('selected', "selected")} else {child[i].removeAttribute('selected')}}}}}return this.dom.outerHTML;},writeIframe: function (content) {var w, doc, iframe = document.createElement('iframe'),f = document.body.appendChild(iframe);iframe.id = "myIframe";//iframe.style = "position:absolute;width:0;height:0;top:-10px;left:-10px;";iframe.setAttribute('style', 'position:absolute;width:0;height:0;top:-10px;left:-10px;');w = f.contentWindow || f.contentDocument;doc = f.contentDocument || f.contentWindow.document;doc.open();doc.write(content);doc.close();var _this = thisiframe.onload = function () {_this.toPrint(w);setTimeout(function () {document.body.removeChild(iframe)}, 100)}},toPrint: function (frameWindow) {try {setTimeout(function () {frameWindow.focus();try {if (!frameWindow.document.execCommand('print', false, null)) {frameWindow.print();}} catch (e) {frameWindow.print();}frameWindow.close();}, 10);} catch (err) {console.log('err', err);}},isDOM: (typeof HTMLElement === 'object') ?function (obj) {return obj instanceof HTMLElement;} : function (obj) {return obj && typeof obj === 'object' && obj.nodeType === 1 && typeof obj.nodeName === 'string';}};const MyPlugin = {}MyPlugin.install = function (Vue, options) {// 4. 添加实例方法Vue.prototype.$print = Print}export default MyPlugin
import Print from "../static/js/print"Vue.use(ElementUI);Vue.use(Print);this.$print(this.$refs.print) // 使用
普通项目中使用打印
使用jqprint需要结合jquery
//js<script src="./js/jquery-1.4.4.min.js"></script><script src="./js/jquery.jqprint-0.3.js"></script><script>$(function () {$(".print").click(function () {$(".main").jqprint();})})</script>//html<div class="main"><div class="code1"><img id="imgcode1" /></div></div>
注意
*需要打印的模块前不能加margin不能有太多空格，不然会导致多出一页空白页，神坑！！ *
