Input text box input prompt
In order to improve user experience, we often prompt users before entering user information, so as to improve the user experience.
<Html>
<Body>
<Div style = "border: 1px dashed # ccc; width: 300px; height: 200px; padding: 20px">
<Input type = "text" name = "test" id = "test"/> <span style = "color: red; font-weight: bold "id =" help "> </span>
<Script type = "text/javascript">
Document. getElementById ("test"). onclick = function (){
If (document. getElementById ("help"). innerHTML = ""){
Document. getElementById ("help"). innerHTML = "enter Chinese characters ";
}
}
</Script>
</Div>
</Body>
</Html>
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