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fengchuanyu 10 months ago
parent
836d1ca005
commit
814d51bb1a
6 changed files with 174 additions and 2 deletions
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  1. 32 2
      3_js基础/10_函数.html
  2. 20 0
      3_js基础/综合练习3编程题1.html
  3. 21 0
      3_js基础/综合练习3编程题2.html
  4. 36 0
      3_js基础/综合练习3编程题3.html
  5. 40 0
      3_js基础/综合练习3编程题4.html
  6. 25 0
      3_js基础/综合练习3编程题5.html

+ 32 - 2
3_js基础/10_函数.html
View File 

@@ -66,10 +66,40 @@
 
         // foo();
 
 
 
-        var foo = function(){
 
-            console.log("hello");
 
+        // 匿名函数定义方式
 
+        // var foo = function(){
 
+        //     console.log("hello");
 
+        // }
 
+        // foo();
 
+
 
+
 
+        // function foo(){
 
+        //     console.log("hello")
 
+        //     function foo2(){
 
+        //         console.log("world");
 
+        //     }
 
+        //     foo2();
 
+        // }
 
+        // foo();
 
+
 
+
 
+        // 作用域
 
+        function foo(){
 
+            var a = 10;
 
         }
 
         foo();
 
+        console.log(a);
 
+
 
+
 
+        function foo2(){
 
+            var a = 10;
 
+        }
 
+        function foo3(){
 
+            var a = 12;
 
+        }
 
+
 
+        var a = 13;
 
+        var a = 14;
 
     </script>
 
 </body>
 
 </html>

+ 20 - 0
3_js基础/综合练习3编程题1.html
View File 

@@ -0,0 +1,20 @@
 
+<!DOCTYPE html>
 
+<html lang="en">
 
+
 
+<head>
 
+    <meta charset="UTF-8">
 
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
+    <title>Document</title>
 
+</head>
 
+
 
+<body>
 
+    <script>
 
+        var numX = window.prompt("请输入X");
 
+        function funX(x){
 
+            return 4*Math.pow(x,2)+3*x+2;
 
+        }
 
+        console.log(funX(numX));
 
+    </script>
 
+</body>
 
+
 
+</html>

+ 21 - 0
3_js基础/综合练习3编程题2.html
View File 

@@ -0,0 +1,21 @@
 
+<!DOCTYPE html>
 
+<html lang="en">
 
+
 
+<head>
 
+    <meta charset="UTF-8">
 
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
+    <title>Document</title>
 
+</head>
 
+
 
+<body>
 
+    <script>
 
+        function funMin(x,y){
 
+            return x<y?x:y;
 
+        }
 
+        var numX = parseInt(window.prompt("请输入x"));
 
+        var numy = parseInt(window.prompt("请输入y"));
 
+        console.log(funMin(numX,numy));
 
+    </script>
 
+</body>
 
+
 
+</html>

+ 36 - 0
3_js基础/综合练习3编程题3.html
View File 

@@ -0,0 +1,36 @@
 
+<!DOCTYPE html>
 
+<html lang="en">
 
+
 
+<head>
 
+    <meta charset="UTF-8">
 
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
+    <title>Document</title>
 
+</head>
 
+
 
+<body>
 
+    <script>
 
+        function foo(n){
 
+            if(n%3==0 && n%5==0 && n%7==0){
 
+                return true;
 
+            }else{
 
+                return false;
 
+            }
 
+        }
 
+
 
+        var arr = [];
 
+        for(var i=1;i<=1000;i++){
 
+            if(foo(i)){
 
+                arr.push(i)
 
+            }
 
+        }
 
+
 
+        for(var j=0;j<arr.length;j++){
 
+            document.write(arr[j]+"&nbsp;");
 
+            if((j+1)%6 == 0){
 
+                document.write("<br>");
 
+            }
 
+        }
 
+    </script>
 
+</body>
 
+
 
+</html>

+ 40 - 0
3_js基础/综合练习3编程题4.html
View File 

@@ -0,0 +1,40 @@
 
+<!DOCTYPE html>
 
+<html lang="en">
 
+
 
+<head>
 
+    <meta charset="UTF-8">
 
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
+    <title>Document</title>
 
+</head>
 
+
 
+<body>
 
+    <script>
 
+        // 判断一个值是否为素数 （素数：智能被1和本身整除的数字）
 
+        function foo(n){
 
+            for(var i=2;i<n;i++){
 
+                if(n%i == 0){
 
+                    return false
 
+                }
 
+            }
 
+            return true;
 
+        }
 
+
 
+        // 将所有满足条件的素数放到数组arr中
 
+        var arr = [];
 
+        for(var j=100;j<=1000;j++){
 
+            if(foo(j)){
 
+                arr.push(j)
 
+            }
 
+        }
 
+
 
+        // 将所有的结果输出到页面当中
 
+        for(k=0;k<arr.length;k++){
 
+            document.write(arr[k]+"&nbsp;");
 
+            if((k+1)%6==0){
 
+                document.write("<br>");
 
+            }
 
+        }
 
+    </script>
 
+</body>
 
+
 
+</html>

+ 25 - 0
3_js基础/综合练习3编程题5.html
View File 

@@ -0,0 +1,25 @@
 
+<!DOCTYPE html>
 
+<html lang="en">
 
+
 
+<head>
 
+    <meta charset="UTF-8">
 
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
+    <title>Document</title>
 
+</head>
 
+
 
+<body>
 
+    <script>
 
+        // 定一个计算 n的阶层的函数
 
+        function factorial(n){
 
+            var res = 1;
 
+            for(var i=1;i<=n;i++){
 
+                // res = res * i;
 
+                res *= i;
 
+            }
 
+            return res;
 
+        }
 
+        console.log(factorial(12) - factorial(10));
 
+    </script>
 
+</body>
 
+
 
+</html>