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1, tagcontrolAttribute
In HTML5, you can place a form element inside the tag, and pass the tag's control attribute to access the form element.
1 nbsp;html> 2 3 4 <meta> 5 <title>Document</title> 6 7 8 <script> 9 function setValue(){10 var label=document.getElementById("label");11 var textbox=label.control;12 textbox.value=510006;13 }14 </script>1523 24
Text boxplaceholder attribute
placeholder refers to when the text box is not entered Input prompt displayed in status . When the text box is in an uninput state and does not obtain the cursor focus, the input prompt text is blurred.
1 nbsp;html> 2 3 4 <meta> 5 <title>Placehoder属性</title> 6 7 8 <input> 9 10
Text boxlistAttribute
In HTML5, a list is added for the single-line text box Attribute, the value of this attribute is the id of a certain datalist element. The datalist element is also a new element in HTML5. This element is similar to a selection box, but when the value the user wants to set is not within the selection list, the user is allowed to enter it by himself. The datalist element itself is not displayed, but is displayed as a prompt for input when the text box gains focus.
1 nbsp;html> 2 3 4 <meta> 5 <title>List属性</title> 6 7 816 17 Text box AutoComplete property
1 nbsp;html> 2 3 4 <meta> 5 <title>文本框AutoComplete属性</title> 6 7 816 17 Text box The pattern attributeThe Selection
Direction attribute of the text box
The indeterminate attribute of the check box
image submissionThe height property and width property of button
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