<div id="qrcode" @click="aa"></div>
methods: {
aa(){//點擊下載二維碼保存到本地
setTimeout(()=>{
let myCanvas = document.getElementById('qrcode').getElementsByTagName('canvas');
let a = document.createElement('a')
a.href = myCanvas[0].toDataURL('image/png');
a.download = 'qrcode';
a.click()
this.$message({
showClose: true,
message: '正在進行下載保存',
type: 'success'
});
},0)
},
},
mounted(){ this.$nextTick(()=>{//繪制二維碼 let qrCodeContainer = document.getElementById('qrcode'); qrCodeContainer.innerHTML = ''; let qrcode = new QRCode(qrCodeContainer, { width: 180,//設置寬高 height: 180, correctLevel: 3 }); qrcode.makeCode(this.qrCode+'?idt_owner='+this.idt_owner+'&idt_area_open='+this.base_ids); this.imgUrl=this.qrCode+'?idt_owner='+this.idt_owner+'&idt_area_open='+this.base_ids//獲取二維碼地址,this.qrCode(域名)+參數
$("#qrcode").attr("title","");//清除二維碼鏈接數據顯示 }) }