Another use of this function is to populate any hidden INPUT elements based on other form field values.
此函数的另一个作用是根据其他表单字段值填充任何隐藏的INPUT元素。
After you have the current progress updated in the hidden input field, all that's left to do is to update the ProgressBar component accordingly.
当您当前的进度在隐藏的输入域中更新之后，剩余的任务就是更新相应的ProgressBar组件。
Listing 10 shows the first field of the form, which is an input box if edit_mode is true or a hidden field if edit_mode is false.
清单10显示的是表单的第一个域，如果edit _ mode是true，它就是一个输入框；如果edit _ mode是false，它就是一个隐藏域。
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