/// 不添加[FromUri]时,运行和发布,用google的ARC调试工具,model都=null,
/// 但是Android调用没问题,添加[FromUri]后,都好使
/// Post3种传递参数方式:
/// 1. 默认表单form, FormUrlEncoded
/// 2. [FromUri] 与查询参数对应,即quary
/// 3. [FromBody] 与查询体对应
public int Post([FromBody]work_police model)
{
......
}