How to make the input text box uneditable in html

Sometimes, we want the text box in the form to be read-only so that the user cannot modify the information in it,

For example, the content of the input text, the Chinese characters cannot be modifiedSometimes, we want the text box in the form to be read-only so that the user cannot modify the information in it,

If the content of is used, the word "China" cannot be modified. To summarize, the implementation methods are as follows.

Method 1: onfocus=this.blur() Leave the focus when the mouse cannot be placed

<input type="text" name="input1" value="中国" onfocus=this.blur()>

Method 2: readonly

I like to use this, it can prevent the content from being modified,

The copy background can also accept passed values and save them to the database together with other input data

<li class="l1"><span>项目名称</span><span>  </span></li>
<li class="l2"><input  name="entryName" id="entryName"
style="color: #444"  type="text" value="邢台县“群众办事不出村”政务服务平台扩建项目" readonly="true"></li>

Method 3: disabled

<input type="text" name="input1" value="中国" readonly>   
<input type="text" name="input1" value="中国" readonly="true">

Complete example:

<input type="text" name="input1" value="中国" disabled="true">

disabled="true" The text will change It is grayed out and cannot be edited.
readOnly="true" The text will not change color and is not editable
css shielded input:

<input name="ly_qq" type="text" tabindex="2" onMouseOver="this.className=&#39;input_1&#39;" onMouseOut="this.className=&#39;input_2&#39;" 
value="123456789" disabled="true"　readOnly="true" />

There are two methods:

First: disabled="disabled" is disabled after being defined like this The input element is neither available nor clickable.

Second: readonly="readonly" Read-only fields cannot be modified. However, users can still tab to the field and select or copy its text;

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