```javascript
WXAPI.alipayAPP({
token: '000',
money: 0.01,
remark: '优惠买单 ：0.01',
payName: '优惠买单'
})
```
+ token 登陆凭证
+ money 支付金额
+ payName 支付界面显示的购买名称
+ remark 备注信息，会记录到后台支付记录中的备注字段，可不传
+ nextAction 支付成功以后，需要进行的下一步操作，可不传
+ shopId 收款门店ID，可不传
接口返回：
```json
{
"code": 0,
"data": {
"outTradeId": "ZF2203060872249236",
"url": "alipay_sdk=alipay-sdk-java-dynamicVersionNo&app_id=2017021705713075&biz_content=%7B%22body%22%3A%22%E4%BC%98%E6%83%A0%E4%B9%B0%E5%8D%95%E4%BC%98%E6%83%A0%E4%B9%B0%E5%8D%95%22%2C%22out_trade_no%22%3A%22ZF2203060872249236%22%2C%22subject%22%3A%22%E4%BC%98%E6%83%A0%E4%B9%B0%E5%8D%95%22%2C%22total_amount%22%3A%221%22%7D&charset=utf-8&format=json&method=alipay.trade.app.pay¬ify_url=https%3A%2F%2Fapi.it120.cc%2Ftz%2Fpay%2Falipay%2Fgate%2FpayBack&sign=TQ4O9ES3KP%2Blp2GzH8AyYDBuvkEYTIBE5qowNbJ5DpXheJ0pWXaISQguKx9UgPrLMGh5wvfM5vFG79avG56B9a6PgaY9R8kWOSXdENOsm8hRiEP4c2BrW%2FKRV51%2B6P1rVTOWA7X33vKbHXb1%2B6UU81Ag92HiJXWjutzFl9nGSZaIwapWvrWOe4mHsFRTTbY2tAfqZ%2BI8lGmDTAyB%2BdI%2BtUcUK9nPWWCia%2FP5tPQCdTAuvIKaZ3Cw7PySb4OJkoLqASq6fca%2B4wiK2mPIurdp7nUIpyuIO10Df1RqTNR7LdDxzNJs8h1UPS%2BBkSiLqg38Mw3BajM5okQAx8gUNSNScg%3D%3D&sign_type=RSA2×tamp=2022-03-06+17%3A10%3A44&version=1.0"
},
"msg": "success"
}
```
收到接口返回以后，将`data`的内容，根据相关 app 支付SDK方法，调起在线支付即可