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flowst=>start: 下载用户App e=>end: 订单结算op1=>operation: 填写发货信息op2=>operation: 填写收货信息op3=>operation: 填写订单详情，保价备注金额。op4=>operation: 选择支付方式cond1=>condition: 确定支付？op5=>operation: 发布订单op6=>operation: 等待接单op7=>operation: 已经接单op8=>operation: 确认送达op9=>operation: 订单完成st->op->e