// app.ts
App<IAppOption>({
    globalData: {
        env: 'release'
    },
    onLaunch() {
        const accountInfo = wx.getAccountInfoSync();
        const env = accountInfo.miniProgram.envVersion || 'release';
        this.globalData.env = env;
        if (env !== 'release') {
            const printHeader = wx.getStorageSync('printHeader') || 'wechat';
            this.globalData.printHeader = printHeader;
        }
    },

    onShow() {
        // 小程序显示时的生命周期
    },

    onHide() {
        // 小程序隐藏时的生命周期  
    },

    getPrintHeader(): PrintHeader {
        return this.globalData.printHeader || 'wechat';
    },

    setPrintHeader(header: PrintHeader) {
        header = header || 'wechat';
        this.globalData.printHeader = header;
        wx.setStorageSync('printHeader', header);
    }
});