diff --git "a/21\345\272\204\344\272\221/\344\275\234\344\270\232/2022-10-13js\345\237\272\347\241\200.html" "b/21\345\272\204\344\272\221/\344\275\234\344\270\232/2022-10-13js\345\237\272\347\241\200.html"
new file mode 100644
index 0000000000000000000000000000000000000000..e61008d68e2f0ddb4bd44d6055bd1fbf8c49aa55
--- /dev/null
+++ "b/21\345\272\204\344\272\221/\344\275\234\344\270\232/2022-10-13js\345\237\272\347\241\200.html"
@@ -0,0 +1,88 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+    <script>
+        // 1.   1-100之间偶数相加，求加到几的时候和超过1000：**
+        //
+        var num =1;
+        var sum=0;
+        while(num <=100){
+            if(num % 2==0){
+                sum+=num;
+                if (sum>1000) {
+                    alert('加到'+num+'时和超过一千')
+                    break;
+                }
+                num++;
+            }else{
+                num++;
+            }
+        }
+        
+        console.log(sum);
+        //
+        var sum =0;
+        for(var i=1;i<=100;i++){
+            if(i % 2==0){
+                sum+=i;
+            }
+            if(sum>1000){
+                alert(i);
+                break;
+            }
+        }
+     
+// 2.   1-100之间偶数相加，能被7整除的数字不参加累加运算，求和
+
+        var num1 =1;
+        var sum1=0;
+        while(num1 <=100){
+            if(num1 % 2==0 && num1%7!=0){
+                sum1+=num1;
+                num1++;
+            }else{
+                num1++;
+            }
+        }
+        alert(sum1)
+         
+        var summmm=0;
+        for(var i=1;i<=100;i++){
+            if(i %2 ==0 && i %7!=0){
+                summmm+=i
+            }
+        }
+        alert(summmm);
+// 3.   求1999-2022的润年
+        for(var i=1999;i<=2022;i++){
+            if (i % 400==0 || (i % 4 ==0 && i %100!=0 )) {
+                alert(i + '是闰年')
+            }
+        }
+// 4. 输入分数，如果分数在  90-100: A  80-89：B     60-79：C      小于60：D
+// 	考虑分数不合法
+        var scroe =prompt('请输入成绩')
+        if (scroe>=0 && scroe<=100) {
+            if (scroe>=90) {
+            alert('您的成绩等级为A')
+       }else if (scroe>=80 && scroe>=89 ) {
+            alert('您的成绩等级为B')
+       }else if (scroe>=60 && scroe>=79) {
+            alert('您的成绩等级为C')
+       }else if (scroe<60) {
+            alert('您的成绩等级为D')
+       }
+        }else{
+            alert('您的成绩输入有误')
+        }
+       
+    </script>
+</head>
+<body>
+    
+</body>
+</html>
\ No newline at end of file
diff --git "a/21\345\272\204\344\272\221/\344\275\234\344\270\232/2022-10-14\346\225\260\346\215\256\347\261\273\345\236\213.html" "b/21\345\272\204\344\272\221/\344\275\234\344\270\232/2022-10-14\346\225\260\346\215\256\347\261\273\345\236\213.html"
new file mode 100644
index 0000000000000000000000000000000000000000..b8dba9ec2457cf9a76383156996d11ed735f2608
--- /dev/null
+++ "b/21\345\272\204\344\272\221/\344\275\234\344\270\232/2022-10-14\346\225\260\346\215\256\347\261\273\345\236\213.html"
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    <script>
+//         1.将A5F3转成2进制
+            var num=parseInt('A5F3',16)
+            var res =num.toString(2)
+            console.log(res);
+//         2.99乘法表
+            for (var i = 1; i <= 9; i++) {
+                var sum=' ';
+                for (let j = 1; j <= i; j++) {
+                  
+                  sum=sum+j+'*'+i+'='+(j*i)+'\t'
+                }
+                sum=sum+'<br>'
+                  document.write(sum)
+            }
+//         3.输入年月，（用数组）
+//           3.1.计算当月有多少天
+//         3.2.计算还剩多少天
+            var a=prompt('请输入年月日');
+            var year=new Date(a).getFullYear();
+            var month=new Date(a).getMonth();
+            var day=new Date(a).getDate();
+            const arr=[];
+            if(year % 400 ==0 || (year % 4 ==0 && year%100 !=0)){
+                arr=[31,29,31,30,31,30,31,30,31,30,31,30]
+            }else{
+                arr=[31,29,31,30,31,30,31,30,31,30,31,30]
+            }
+            alert('这个月有'+arr[month-1]+'天'+'  '+'这个月还剩'+(arr[month-1]-day)+'天');
+    </script>
+</body>
+</html>
\ No newline at end of file
diff --git "a/21\345\272\204\344\272\221/\347\254\224\350\256\260/JavaScript.md" "b/21\345\272\204\344\272\221/\347\254\224\350\256\260/JavaScript.md"
new file mode 100644
index 0000000000000000000000000000000000000000..138fb0d1b3c87eef125910963f827808d79ec549
--- /dev/null
+++ "b/21\345\272\204\344\272\221/\347\254\224\350\256\260/JavaScript.md"
@@ -0,0 +1,29 @@
+# JavaScript
+
+### 创建JavaScript
+
+```html
+<head>
+    <script type="text/javascript">
+	</script>
+</head>
+
+```
+
+### JavaScript直接写入html输出流
+
+```html
+<script>
+document.write()
+</script>
+```
+
+### 弹出警告框显示数据
+
+```html
+<script>
+alert()
+</script>
+```
+
+数据
\ No newline at end of file
