input spec file could not same as the code logic , so input spec is not essential!
eg: if i modify the spec file content , but api respone the correct fromat ,
the spec content only use in output instance file before request and respone josn node ,
but they not corresponding!!!
eg: if i modify the spec file content , but api respone the correct fromat , the spec content only use in output instance file before request and respone josn node , but they not corresponding!!!