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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>localStorage</title>
- </head>
- <body>
- <h2>localStorage</h2>
- <button onClick="saveData()">点我保存一个数据</button>
- <button onClick="readData()">点我读取一个数据</button>
- <button onClick="deleteData()">点我删除一个数据</button>
- <button onClick="deleteAllData()">点我清空数据</button>
- <script type="text/javascript">
- let p = {name:'张三',age:18}
- function saveData(){
- localStorage.setItem('msg','hello!')
- localStorage.setItem('msg2',666) //666最终会被转换成字符串存储
- localStorage.setItem('person',JSON.stringify(p))
- }
- function readData(){
- console.log(localStorage.getItem('msg'))
- console.log(localStorage.getItem('msg2'))
- const result = localStorage.getItem('person')
- console.log(JSON.parse(result))
- }
- function deleteData(){
- localStorage.removeItem('msg2')
- }
- function deleteData(){
- localStorage.clear()
- }
- </script>
- </body>
- </html>
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