"调用Native方法" onclick="testClick1();"
    />
</p>
<p>
    <input type="button" id="enter2" value="显示html" onclick="testDiv();"/>
</p>
<p>
    <input type="file" value="打开文件"/>
</p>
</body>
<script>
        function testDiv() {
            document.getElementById("show").innerHTML = document.getElementsByTagName("html")[0].innerHTML;
        }
        function testClick() {
            var str1 = document.getElementById("text1").value;
            var str2 = document.getElementById("text2"