老师请检查
1 | <? xml version = "1.0" encoding = "UTF-8" ?>< br >< teaching-plan >< br > < course course-num = "001" >< br > < course-name >大学英语</ course-name >< br > < class-hour >36</ class-hour >< br > < exam-form >考试</ exam-form >< br > </ course >< br > < course course-num = "002" >< br > < course-name >高等数学</ course-name >< br > < class-hour >70</ class-hour >< br > < exam-form >考试</ exam-form >< br > </ course >< br > < course course-num = "003" >< br > < course-name >计算机应用基础</ course-name >< br > < class-hour >108</ class-hour >< br > < exam-form >上机考试</ exam-form >< br > </ course >< br ></ teaching-plan >< br > |
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同学你好,已完成练习,继续加油!
祝学习愉快!
阿山123
2021-04-07 16:31:04
1 | <? xml version = "1.0" encoding = "UTF-8" ?>< br ><!DOCTYPE teaching-plan SYSTEM "plan.dtd">< br >< teaching-plan >< br > < course course-num = "001" >< br > < course-name >大学英语</ course-name >< br > < class-hour >36</ class-hour >< br > < exam-form >考试</ exam-form >< br > </ course >< br > < course course-num = "002" >< br > < course-name >高等数学</ course-name >< br > < class-hour >70</ class-hour >< br > < exam-form >考试</ exam-form >< br > </ course >< br > < course course-num = "003" >< br > < course-name >计算机应用基础</ course-name >< br > < class-hour >108</ class-hour >< br > < exam-form >上机考试</ exam-form >< br > </ course >< br ></ teaching-plan >< br > |
1 | <? xml version = "1.0" encoding = "UTF-8" ?>< br ><!ELEMENT teaching-plan (course+)>< br ><!ATTLIST course course-num CDATA "">< br ><!ELEMENT course (course-name,class-hour,exam-form)>< br ><!ELEMENT course-name (#PCDATA)>< br ><!ELEMENT class-hour (#PCDATA)>< br ><!ELEMENT exam-form (#PCDATA)>< br > |
这个是语义约束,请老师检查
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