80 lines
1.9 KiB
HTML
80 lines
1.9 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>页面二</title>
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<style>
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table{
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border: 1px solid;
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border-collapse: collapse;
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}
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table td{
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border: 1px solid;
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}
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</style>
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</head>
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<body>
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<h1>学生表</h1>
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<table id="tab">
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<!-- <tr>
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<td>学号</td>
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<td>姓名</td>
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<td>年龄</td>
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</tr>
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<tr>
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<td>1</td>
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<td>謝傑</td>
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<td>18</td>
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</tr>
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<tr>
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<td>2</td>
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<td>张三</td>
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<td>19</td>
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</tr> -->
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</table>
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<script src="./db.js"></script>
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<script>
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function render(arr){
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let tab = document.querySelector("#tab");
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tab.innerHTML = `
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<tr>
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<td>学号</td>
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<td>姓名</td>
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<td>年龄</td>
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</tr>
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`;
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let str = arr.map(item=>{
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return `
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<tr>
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<td>${item.stuId}</td>
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<td>${item.stuName}</td>
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<td>${item.stuAge}</td>
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</tr>
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`
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}).join("");
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tab.innerHTML += str;
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}
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async function renderTable(){
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let db = await openDB("stuDB",1);
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let stuInfo = await getDataByKey(db, "stu");
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render(stuInfo);
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setInterval(async function(){
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let stuInfo2 = await getDataByKey(db, "stu");
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if(stuInfo2.length !== stuInfo.length){
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stuInfo = stuInfo2;
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render(stuInfo);
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}
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}, 1000);
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}
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renderTable()
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</script>
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</body>
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</html> |