微信小程序中生成二维码

使用weapp-qrcode.js

链接：https://pan.baidu.com/s/1j0qjoYvl6pCK8EzSsfks9g 提取码：8wxe

<canvas class="canvas-code" canvas- :px\', height: qrcode_w + \'px\' }" />

import QRCode from \'../../utils/weapp-qrcode.js\';

getEwm() {
                        const W = wx.getSystemInfoSync().windowWidth;
                        const rate = 750.0 / W;
                        // 160rpx 在6s上为 80px
                        this.qrcode_w = 160 / rate;
                        new QRCode(\'myQrcode\', {
                                text: \'你的链接\',
                                width: this.qrcode_w,
                                height: this.qrcode_w,
                                colorDark: \'#000000\',
                                colorLight: \'#ffffff\',
                                padding: 2, // 生成二维码四周自动留边宽度，不传入默认为0
                                correctLevel: QRCode.CorrectLevel.L, // 二维码可辨识度
                                callback: res => {
                                        console.log(res.path);
                                }
                        });
                }