bodyWeight/miniprogram/app.ts

 App<IAppOption>({
    globalData: {},

    onLaunch() {
        // 已登录则跳过登录页
        const token = wx.getStorageSync('token') || null;
        const userInfo = wx.getStorageSync('userInfo') || null;
        // const userInfo = true;
        if (token && userInfo) {
            wx.reLaunch({
                url: '/pages/home/home'
            })
        }
    },

    getWxLoginCode(): Promise<string> {
        return new Promise((resolve, reject) => {
            wx.login({
                success: (res) => {
                    if (res.code) {
                        resolve(res.code)
                    } else {
                        reject(new Error('获取登录凭证失败'))
                    }
                },
                fail: (err) => {
                    reject(new Error(err.errMsg || '获取登录凭证失败'))
                },
            })
        })
    },
})