The search term is entered in the text field and the search is started by activating the button. If the button is defined as the default button, however, simply hit Enter after entering the search term in order to start the search.
当在 Web 页窗体中查找掩码时，可能会用到此属性。输入掩码含有一个文本字段和一个“提交”类型的按钮。在文本字段中输入检索条目后，激活该按钮可以开始搜索。如果将该按钮定义为默认按钮，则在输入完检索条目后只需要按 Enter 键就可以开始搜索。