iredeemgears 合约 概览 操作 (1) 结构体 (2) 表 (1) 应用二进制接口 结构体 (2) upgrade upgrades 的表格行类型 { "name": "upgrade", "base": "", "fields": [ { "name": "offer_id", "type": "uint64" }, { "name": "owner", "type": "name" }, { "name": "unpack", "type": "bool" } ] }