let params={auth:authClient, //客户端认证后的Instance
packageName: "",//包名
productId: "", //返回的商品名
token: "" //返回的token字段 }
androidpublisher.purchases.products.get(params).then(respos=>{
    console.log(respos.data)
    //data数据结构如下：
    //{
    //   "kind": "androidpublisher#productPurchase",
    //   "purchaseTimeMillis": long,
    //   "purchaseState": integer,
    //   "consumptionState": integer,
    //   "developerPayload": string,
    //   "orderId": string,
    //   "purchaseType": integer,
    //   "acknowledgementState": integer
    // }
}).catch(err=>{
    console.log('error:',err.errors)
})