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Option对象中form属性的使用方法
option对象的form属性用于获取其所属表单的对象信息。 1、 新建一个名为option_name的HTML文件。 2、 添加一个下拉框并设置其ID为my_option_id_form,同时创建一个表单并指定其名称。 3、 添加一个按钮,为其点击事件绑定自定义函数,应用于 my_option_form 表单中。
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