anchor.diff:                  {
                       "coursid": "Course ID",
                       "coursename": "Course name",
  -                    "day": "From Monday to Sunday",
  -                    "class": "From 1 to 6",
  +                    "time": "[[1 to 7,1 to 6]]",
  +                    "teacher": "Teacher",
  +                    "classroom": "Classroom"
  +                }
  +            ]
  +        }
  +
  ++ Response 400 (application/json)
  +
  +        {
  +            "message": "Failure",
  +            "username": "Request username"
  +        }
  +
  +## Student Semester Curriculum  [/schedule/{username}]
  +
  +### Get Curriculum Of A Semester [POST]
  +
  ++ Request (application/json)
  +
  +        {
  +            "apikey": "API Key",
  +            "apisecret": "API Secret Key"
  +        }
  +
  ++ Response 200 (application/json)
  +
  +        {
  +            "message": "Success",
  +            "username": "Request username",
  +            "classes": [
  +                {
  +                    "coursid": "Course ID",
  +                    "coursename": "Course name",
  +                    "time": "[[1 to 7,1 to 6]]",
                       "teacher": "Teacher",
                       "classroom": "Classroom",
  -                }
  -            ]
  -        }
  -
  -+ Response 412 (application/json)
  -
  -        {
  -            "message": "Failure",
  -            "username": "Request username"
  -        }
  -
  -## Student Semester Curriculum  [/schedule/{username}]
  -
  -### Get Curriculum Of A Semester [POST]
  -
  -+ Request (application/json)
  -
  -        {
  -            "apikey": "API Key",
  -            "apisecret": "API Secret Key"
  -        }
  -
  -+ Response 200 (application/json)
  -
  -        {
  -            "message": "Success",
  -            "username": "Request username",
  -            "classes": [
  -                {
  -                    "coursid": "Course ID",
  -                    "coursename": "Course name",
  -                    "day": "From Monday to Sunday",
  -                    "class": "From 1 to 6",
  -                    "teacher": "Teacher",
  -                    "classroom": "Classroom",
  -                    "weeks": "Description like 'odd weeks', 'even weeks' and so on"
  -                }
  -            ]
  -        }
  -
  -+ Response 412 (application/json)
  +                    "weeks": "array of [1,16]"
  +                }
  +            ]
  +        }
  +
  ++ Response 400 (application/json)
   
           {
               "message": "Failure",
  
positive.code:             "username": "Request username",
              "existed": "true/false",
              "information": {
                  "studentnumber": "Stundent number",
                  "department": "Department",
                  "position": "undergrate/master/doctor/teacher",
                  "email": "Email",
  
negative.code:             "username": "Request username",
              "assignments": [
                  {
                      "sequencenum": Sequence Number,
                      "title": "Title",
                      "detail": "Detail of the assignment",
                      "startdate": "Start date",
  