13 horas atrás · 234d1e6fb9
--- a/3_JavaScript/练习题22_字符串中提取数字.html
+++ b/3_JavaScript/练习题22_字符串中提取数字.html
@@ -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>
			
 
				+        function CollectDigits(str){
			
 
				+            var res = "";
			
 
				+            for(var i = 0;i<str.length;i++){
			
 
				+                // str.charAt(i)
			
 
				+                // str[i]
			
 
				+                if(str[i]>="0" && str[i]<="9"){
			
 
				+                    res += str[i];
			
 
				+                }
			
 
				+            }
			
 
				+            return res;
			
 
				+        }
			
 
				+
			
 
				+        console.log(CollectDigits("1abc23def4"));
			
 
				+    </script>
			
 
				+</body>
			
 
				+</html>
			
--- a/3_JavaScript/练习题23_字符串交叉合并.html
+++ b/3_JavaScript/练习题23_字符串交叉合并.html
@@ -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>
			
 
				+        function Merge(str1,str2){
			
 
				+            var res = "";
			
 
				+            var minLen = Math.min(str1.length,str2.length);
			
 
				+            var maxArr = str1.length>str2.length?str1:str2;
			
 
				+            for(var i =0;i<minLen;i++){
			
 
				+                res += str1[i] + str2[i];
			
 
				+            }
			
 
				+            res += maxArr.substr(minLen);
			
 
				+            return res;
			
 
				+        }
			
 
				+        var a = "1234567890123";
			
 
				+        var b = "abcdefghi";
			
 
				+        console.log(Merge(a,b));
			
 
				+    </script>
			
 
				+</body>
			
 
				+</html>
			
--- a/3_JavaScript/练习题24_成绩统计.html
+++ b/3_JavaScript/练习题24_成绩统计.html
@@ -0,0 +1,11 @@
 
				+<!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>
			
 
				+    
			
 
				+</body>
			
 
				+</html>
			
--- a/3_JavaScript/练习题25_斐波那契数列.html
+++ b/3_JavaScript/练习题25_斐波那契数列.html
@@ -0,0 +1,11 @@
 
				+<!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>
			
 
				+    
			
 
				+</body>
			
 
				+</html>
			
--- a/3_JavaScript/练习题26_返回本年度的第几天.html
+++ b/3_JavaScript/练习题26_返回本年度的第几天.html
@@ -0,0 +1,11 @@
 
				+<!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>
			
 
				+    
			
 
				+</body>
			
 
				+</html>