방법.1

<input type="text" name="test1" value="readonly1">




방법.2

<input type="text" name="test2" value="readonly2" readonly>




방법.3

<input type="text" name="test3" value="readonly3" readonly="">




방법.4

<input type="text" name="test4" value="readonly4" readonly="readonly">




방법.5

<input type="text" name="test5" value="readonly5" readonly="true">




방법.6

<input type="text" name="test6" value="readonly5" readonly="1">