<script type="text/javascript"> // 验证当前的浏览器是否支持localStorage和sessionStorage window.onload = function(){ if (window.localStorage && window.sessionStorage) { alert("你的浏览器支持localStorage和sessionStorage"); } } </script>

<script type="text/javascript"> // 创建均使用localStorage做示例，sessionStorage语法方式和localStorage是一样的，localStorage(key, value);或者localStorage.key = "value"; window.onload = function(){ if (window.localStorage) { localStorage.setItem("userName", "张三"); } } </script>

<script type="text/javascript"> // 可以直接使用localStorage.getItem(key);也可以使用localStorage.key; window.onload = function(){ if (window.localStorage && window.sessionStorage) { localStorage.setItem("userName", "张三"); alert(localStorage.getItem("userName"));
} } </script>

<script type="text/javascript"> // localStorage.removeItem(key):根据键名删除指定存储，localStorage.clear():删除指定所有存储，当Storage对象为空时，也是可执行的。 window.onload = function(){ if (window.localStorage && window.sessionStorage) { localStorage.setItem("userName", "hello,world!");
　　 localStorage.removeItem("userName");
localStorage.clear(); } } </script>