设置input标签只读不可编辑

方法一：readonly

<input type="text" name="name" value="jack" id="txtName" readonly="readonly" />
<input type="text" name="name" value="jack" id="txtName" readonly />

方法二：disabled

<input type="text" name="name" value="jerry" id="txt2" disabled/>
<input type="text" name="name" value="jerry" id="txt2" disabled="disabled"/>