几行代码获取微信绑定的手机号 小程序云开发

<button open-type="getPhoneNumber" 
bindgetphonenumber="getPhoneNumber">
获取手机号码
</button>

//获取手机号
getPhoneNumber(e) {
wx.cloud.callFunction({
name: 'openApi',
data: {
$url: "phone",
phone_id: e.detail.cloudID, 
}
}).then(res => {
console.log(res)
})
},

// 云函数入口文件
const cloud = require('wx-server-sdk');
const TcbRouter = require('tcb-router');//路由
cloud.init();
const db = cloud.database();
exports.main = (event, context) => {
const app = new TcbRouter({
event
});
//获取手机号码
app.router('phone', async (ctx) => {
ctx.body =await cloud.getOpenData({
list: [event.phone_id], 
})  
});
return app.serve();
}