老师请检查

<?xml version="1.0" encoding="UTF-8"?>
<teaching-plan>
	<course course-num="001">
		<course-name>大学英语</course-name>
		<class-hour>36</class-hour>
		<exam-form>考试</exam-form>
	</course>
	<course course-num="002">
		<course-name>高等数学</course-name>
		<class-hour>70</class-hour>
		<exam-form>考试</exam-form>
	</course>
	<course course-num="003">
		<course-name>计算机应用基础</course-name>
		<class-hour>108</class-hour>
		<exam-form>上机考试</exam-form>
	</course>
</teaching-plan>

阿山123 2021-04-07

源自：XML入门 2-10 自由编程

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2回答

好帮手慕小尤回答被采纳获得+3积分 2021-04-07 16:45:59

同学你好，已完成练习，继续加油！

祝学习愉快！

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阿山123 提问者 2021-04-07 16:31:04

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE teaching-plan SYSTEM "plan.dtd">
<teaching-plan>
	<course course-num="001">
		<course-name>大学英语</course-name>
		<class-hour>36</class-hour>
		<exam-form>考试</exam-form>
	</course>
	<course course-num="002">
		<course-name>高等数学</course-name>
		<class-hour>70</class-hour>
		<exam-form>考试</exam-form>
	</course>
	<course course-num="003">
		<course-name>计算机应用基础</course-name>
		<class-hour>108</class-hour>
		<exam-form>上机考试</exam-form>
	</course>
</teaching-plan>

<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT teaching-plan (course+)>
<!ATTLIST course course-num CDATA "">
<!ELEMENT course (course-name,class-hour,exam-form)>
<!ELEMENT course-name (#PCDATA)>
<!ELEMENT class-hour (#PCDATA)>
<!ELEMENT exam-form (#PCDATA)>

这个是语义约束，请老师检查

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