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同学们,有谁为什么value中必须写成param.score,不能替换成别的对象。变量

<form action="firstDemo.jsp" method="post" >
        <input type="text" name="score" value="${param.score}"/>
        <input type="submit" />
    </form>

正在回答

3 回答

${param.name}是得到将表单或者url的参数传递过来的值。是固定写法

因为name属性的值为score,所以为${param.score}

1 回复 有任何疑惑可以回复我~
#1

qq_浩然_9 提问者

多谢啦
2019-09-07 回复 有任何疑惑可以回复我~
#2

曰小白 回复 qq_浩然_9 提问者

不用谢,我也是个小白,大家相互学习
2019-09-07 回复 有任何疑惑可以回复我~
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0 回复 有任何疑惑可以回复我~

  这是第几个视频?

0 回复 有任何疑惑可以回复我~
#1

qq_浩然_9 提问者

这是3.6的那个视频,if else或者choose,when,otherwise里边都有用到,param是隐式变量,那score是属于什么,测试别的就不行,这个是param变量中独有的吗
2019-09-07 回复 有任何疑惑可以回复我~

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同学们,有谁为什么value中必须写成param.score,不能替换成别的对象。变量

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