<input type="text" id="HouseName" value="" align="left"/>

<script>
  //js方式:js对大小写敏感
   document.getElementById("HouseName").readOnly = true;  //设置只读 //readOnly 大小写敏感
   document.getElementById("HouseName").readOnly = false;  //取消只读

  //jquery方式:
  HouseName.attr("readonly","readonly");  //设置为readonly
  HouseName.removeAttr("readonly");    //去除元素的readonly属性

</script>

 

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