abp 深坑三 Unable to cast object of type 'System.Double' to type 'System.Single'.System.InvalidCastException: Unable to cast object of type 'System.Double' to type 'System.Single'.

book接口请求出错 

 

 

 

 

 

 

 对应数据库类型  

 

 

 real    如果改成float 会报错