import QRCode from 'qrcodejs2'
new QRCode(this.$refs.qrCodeWrapper, {
text: this.url,
width: this.width,
height: this.height,
colorDark: this.colorFront, // 前景色
colorLight: this.colorBack, // 背景色
correctLevel: QRCode.CorrectLevel.L // 容错率级别 L M Q H
})