| POST /3-0/app/account/item HTTP/1.1 | |
| Host | 10.100.138.32:8046 |
| Content-Type | application/json |
| Accept-Encoding | gzip, deflate |
| Connection | keep-alive |
| Accept | */* |
| sysId | bW9iaWxlXzIwMTcxMjIwMTYwNjU2 |
| User-Agent | CashCompass/2.3.2 (iPhone; iOS 11.2; Scale/3.00) |
| Accept-Language | en;q=1 |
| Content-Length | 148 |
| token | d075224936159f61d2908157fcc78390 |
头部字段可以任意扩展？