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day9

e 1 year ago
parent
42db5c3a26
commit
9f73a96189
7 changed files with 167 additions and 4 deletions
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  1. 11 0
      day9/html/6.数组的方法.html
  2. 11 0
      day9/html/7.Date对象.html
  3. 11 0
      day9/html/8.字符串方法.html
  4. 37 4
      day9/js/5.对象.js
  5. 65 0
      day9/js/6.数组的方法.js
  6. 14 0
      day9/js/7.Date.js
  7. 18 0
      day9/js/8.字符串方法.js

+ 11 - 0
day9/html/6.数组的方法.html
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@@ -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>
 
+    <script src="../js/6.数组的方法.js"></script>
 
+</body>
 
+</html>

+ 11 - 0
day9/html/7.Date对象.html
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@@ -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>
 
+    <script src="../js/7.Date.js"></script>
 
+</body>
 
+</html>

+ 11 - 0
day9/html/8.字符串方法.html
View File 

@@ -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>
 
+    <script src="../js/8.字符串方法.js"></script>
 
+</body>
 
+</html>

+ 37 - 4
day9/js/5.对象.js
View File 

@@ -3,8 +3,9 @@ var arr = new Array();
 
 var arr = [];
 
 // 生成新的空对象
 
 var obj2 = new Object();
 
+var aa = {}
 
 // var data = new Date();
 
-console.log(data,'data')
 
+// console.log(data,'data')
 
 obj2.name = '我的';
 
 console.log(obj2,'obj2');
 
 // 创建一个对象 对象的声明
 
@@ -19,8 +20,12 @@ var obj = {
 
 console.log(obj.name);
 
 console.log(arr);
 
 
-console.log(typeof arr);//Object
 
-console.log(typeof obj);//Object
 
+function fn1() {
 
+    console.log("这是一个函数")
 
+}
 
+console.log(typeof fn1(),'打印函数')
 
+console.log(typeof arr,'打印数组');//Object
 
+console.log(typeof obj,"打印对象");//Object
 
 
 var x = new String();        // 把 x 声明为 String 对象
 
 var y = new Number();        // 把 y 声明为 Number 对象
 
@@ -35,4 +40,32 @@ console.log(typeof y,'y');
 
 console.log(typeof z,'z')
 
 console.log( x,'x1');
 
 console.log( y,'y1');
 
-console.log( z,'z1')
 
+console.log( z,'z1')
 
+
 
+
 
+var arr=new Array();
 
+var a;
 
+var b;
 
+var obj={
 
+  name:'cheny',
 
+  age:13,
 
+  active:function fn1(a1,b1){
 
+    a = a1+b1;
 
+    return console.log(a)
 
+  }
 
+    
+}
 
+obj["active"](1,2)
 
+
 
+// continue
 
+// for
 
+var c1 = 11;
 
+while(c1 <= 15){
 
+    c1++;
 
+    if( c1 == 13 ) {
 
+        continue;
 
+    }
 
+    document.write(c1);
 
+}
 
+
 
+

+ 65 - 0
day9/js/6.数组的方法.js
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@@ -0,0 +1,65 @@
 
+// 数组的方法
 
+var arr = ["孙悟空","唐僧","八戒","沙悟净","白龙马"];
 
+arr.push("我的");
 
+console.log(arr);
 
+// push 向数组中最后的位置添加内容
 
+// unshift 想数组中第一个位置添加内容
 
+// pop 删除数组中最后位置的一个内容
 
+// shift 删除数组中第一个位置的内容
 
+
 
+arr.pop();
 
+console.log(arr);
 
+
 
+arr.unshift("你的")
 
+console.log(arr);
 
+
 
+
 
+// join 将数组转换成用逗号隔开的字符串
 
+console.log(arr.join(),'join');
 
+
 
+// concat连接数组
 
+var news = [1,2,3,4];
 
+var list = arr.concat(news);
 
+console.log(list,'list')
 
+
 
+// 2个值： splice(从那个下标开始,删除的个数)
 
+// 3个值：splice(从那个下标开始,删除的个数,添加的替换内容)
 
+// 可以改变原数组
 
+// var aa = list.splice(2,4,'我','你');
 
+// console.log(aa,'aa')
 
+// console.log(list,'list2')
 
+
 
+// slice对原数组没影响 
+// 截取数组的值slice()
 
+// 一个值 截取索引位置后的全部值
 
+// 两个值 截取到第二值 索引位置的前一个 不包含第二个索引位置
 
+var newList = list.slice(1);
 
+console.log(list,'list3');
 
+console.log(newList,'newList');
 
+
 
+// reverse 倒序
 
+var bb = list.reverse();
 
+console.log(bb,'bb');
 
+
 
+// 强制转换成字符串
 
+// 将数组转换成由,（逗号）分割的字符串
 
+var cc = list.toString();
 
+console.log(cc,'cc');
 
+
 
+// sort排序  按照Unicode编码排序
 
+var ff = [2,3,54,23,122];
 
+var dd = ff.reverse();
 
+console.log(dd,'dd');
 
+
 
+// 升序排列 a-b
 
+// 降序排列 b-a
 
+var newArr = [23,5,76,199,32,2,78,10];
 
+newArr.sort(function(c,d) {
 
+    // return 返回值
 
+    return c-d;
 
+})
 
+console.log(newArr,'newArr')
 
+
 
+
 
+
 
+

+ 14 - 0
day9/js/7.Date.js
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@@ -0,0 +1,14 @@
 
+// Date对象
 
+var date = new Date();
 
+
 
+console.log(date.getFullYear(),'当前的年份');
 
+console.log(date.getMonth()+1,'月份')
 
+console.log(date.getDate(),'日')
 
+console.log(date.getHours(),'小时')
 
+console.log(date.getMinutes(),'分钟')
 
+console.log(date.getSeconds(),'秒')
 
+console.log(date.getMilliseconds(),'毫秒')
 
+console.log(date.getDay(),'星期')
 
+
 
+
 
+console.log(date.getTime(),'获取当前时间的时间戳，也就是毫秒')

+ 18 - 0
day9/js/8.字符串方法.js
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@@ -0,0 +1,18 @@
 
+var a = "This is my name";
 
+//  toUpperCase() 将字符串中所有的字母转为大写
 
+var b = a.toUpperCase();
 
+console.log(b,'toUpperCase')
 
+
 
+
 
+// toLowerCase() 将字符串中所有字母转为小写
 
+var c = b.toLowerCase();
 
+console.log(c,'toLowerCase')
 
+
 
+// concat 连接字符串
 
+var d = c.concat("你好",a,b);
 
+console.log(d,'concat');
 
+
 
+// trim 消除字符串中前后的空格
 
+var ff = '    hello,world   wo   ';
 
+var ee = ff.trim();
 
+console.log(ee,'trim');