{
...
"plugins": {
 "paddlejs-plugin": {
   "version": "0.0.2",
   "provider": "wx7138a7bb793608c3"
 }
}
...
}

{
    "name": "yourProject",
    "version": "0.0.1",
    "main": "dist/index.js",
    "license": "ISC",
    "dependencies": {
        "paddlejs": "^1.0.7"，
    }
}

const paddlejs = require('paddlejs');
const plugin = requirePlugin("paddlejs-plugin");
//app.js
App({
  globalData: {
    Paddlejs: paddlejs.runner
  },
  onLaunch: function () {
    plugin.register(paddlejs, wx);
  }
});

const app = getApp();
let pdjs;

Page({
    onLoad: function () {
        // 1. paddlejs實(shí)例初始化
        pdjs = new app.globalData.Paddlejs({

            // 網(wǎng)絡(luò)模型地址
            modelPath: 'https://paddlejs.cdn.bcebos.com/models/wine/', 

            // 分片參數(shù)文件數(shù)目
            fileCount: 3,

            // 模型輸入shape
            feedShape: {
                fw: 224,
                fh: 224
            },

            // 模型輸出shape
            fetchShape: [1, 40, 1, 1],

            // 以下三個參數(shù)為輸入處理所需參數(shù)
            // 輸入縮放容器大小
            scale: 256,

            // 輸入裁剪容器大小
            targetSize: {
                height: 224,
                width: 224
            },     

            // 均值&方差
            mean: [0.485, 0.456, 0.406],
            std: [0.229, 0.224, 0.225]
        });

        const me = this;
        // 2. 加載神經(jīng)網(wǎng)絡(luò)模型&預(yù)熱
        pdjs.loadModel().then(res => {
            me.setData({
                loaded: true
            })
        });
    }，
    chooseImage() {
        // 3. 以相冊選擇圖片為例，獲取圖片的像素信息作為模型輸入
        const me = this;
        wx.chooseImage({
            count: 1,
            sizeType: ['original'],
            sourceType: ['album', 'camera'],
            success(res) {
                // tempFilePath可以作為img標(biāo)簽的src屬性顯示圖片
                me.getImageInfo(res.tempFilePaths[0]);
            }
        });
    }
    getImageInfo(imgPath) {
        // 獲取到圖片的像素信息
        const me = this;
        wx.getImageInfo({
            src: imgPath,
            success: (imgInfo) => {
                const {
                    width,
                    height,
                    path
                } = imgInfo;

                const canvasId = 'myCanvas';
                // 獲取頁面中的canvas上下文，tips：canvas設(shè)置的寬高要大于選擇的圖片寬高，canvas位置可以絕對定位到視口不可以見
                ctx = wx.createCanvasContext(canvasId);
                ctx.drawImage(path, 0, 0, width, height);
                ctx.draw(false, () => {
                    // API 1.9.0 獲取圖像數(shù)據(jù)
                    wx.canvasGetImageData({
                        canvasId: canvasId,
                        x: 0,
                        y: 0,
                        width: width,
                        height: height,
                        success(res) {
                            me.predict({
                                data: res.data,
                                width: width,
                                height: height
                            });
                        }
                    });
                });
            }
        });
    },
    predict(imgObj) {
        // 4. 在線預(yù)測計(jì)算
        const me = this;
        pdjs.predict(imgObj, function (data) {
            // 5. 對預(yù)測結(jié)果進(jìn)行后處理
            const maxItem = pdjs.utils.getMaxItem(data);
            me.setData({
                result: maps[maxItem.index]
            });
        });
    }
});