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vue3/project3/package-lock.json

@@ -9,6 +9,8 @@
       "version": "0.0.0",
       "dependencies": {
         "axios": "^1.11.0",
+        "sass": "^1.91.0",
+        "scss": "^0.2.4",
         "vue": "^3.5.18"
       },
       "devDependencies": {
@@ -976,6 +978,302 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
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+      "license": "MIT",
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+      "funding": {
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+        "url": "https://opencollective.com/parcel"
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+        "url": "https://opencollective.com/parcel"
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+      "optional": true,
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+        "url": "https://opencollective.com/parcel"
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+      "optional": true,
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+        "url": "https://opencollective.com/parcel"
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     "node_modules/@polka/url": {
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       "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.29.tgz",
@@ -1688,6 +1986,19 @@
         "url": "https://github.com/sponsors/antfu"
       }
     },
+    "node_modules/braces": {
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+      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
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+      "optional": true,
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@@ -1771,6 +2082,21 @@
       ],
       "license": "CC-BY-4.0"
     },
+    "node_modules/chokidar": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-4.0.3.tgz",
+      "integrity": "sha512-Qgzu8kfBvo+cA4962jnP1KkS6Dop5NS6g7R5LFYJr4b8Ub94PPQXUksCw9PvXoeXPRRddRNC5C1JQUR2SMGtnA==",
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+      "dependencies": {
+        "readdirp": "^4.0.1"
+      },
+      "engines": {
+        "node": ">= 14.16.0"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
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@@ -1927,6 +2253,19 @@
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+      "license": "Apache-2.0",
+      "optional": true,
+      "bin": {
+        "detect-libc": "bin/detect-libc.js"
+      },
+      "engines": {
+        "node": ">=0.10"
+      }
+    },
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@@ -2134,6 +2473,19 @@
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       }
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+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
+      "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==",
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "to-regex-range": "^5.0.1"
+      },
+      "engines": {
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@@ -2336,6 +2688,12 @@
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+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-5.1.3.tgz",
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@@ -2352,6 +2710,29 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
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+      "license": "MIT",
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@@ -2371,6 +2752,16 @@
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       }
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@@ -2536,6 +2927,33 @@
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+      "license": "MIT",
+      "optional": true,
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+        "node": ">=8.6"
+      },
+      "funding": {
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@@ -2606,6 +3024,13 @@
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@@ -2687,6 +3112,14 @@
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       "license": "MIT"
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+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/ometa/-/ometa-0.2.2.tgz",
+      "integrity": "sha512-LZuoK/yjU3FvrxPjUXUlZ1bavCfBPqauA7fsNdwi+AVhRdyk2IzgP3JRnevvjzQ6fKHdUw8YISshf53FmpHrng==",
+      "engines": {
+        "node": ">= 0.2.0"
+      }
+    },
     "node_modules/open": {
       "version": "10.2.0",
       "resolved": "https://registry.npmjs.org/open/-/open-10.2.0.tgz",
@@ -2846,6 +3279,19 @@
         "node": "^18.17.0 || >=20.5.0"
       }
     },
+    "node_modules/readdirp": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-4.1.2.tgz",
+      "integrity": "sha512-GDhwkLfywWL2s6vEjyhri+eXmfH6j1L7JE27WhqLeYzoh/A3DBaYGEj2H/HFZCn/kMfim73FXxEJTw06WtxQwg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 14.18.0"
+      },
+      "funding": {
+        "type": "individual",
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/rfdc": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/rfdc/-/rfdc-1.4.1.tgz",
@@ -2906,6 +3352,37 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/sass": {
+      "version": "1.91.0",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.91.0.tgz",
+      "integrity": "sha512-aFOZHGf+ur+bp1bCHZ+u8otKGh77ZtmFyXDo4tlYvT7PWql41Kwd8wdkPqhhT+h2879IVblcHFglIMofsFd1EA==",
+      "license": "MIT",
+      "dependencies": {
+        "chokidar": "^4.0.0",
+        "immutable": "^5.0.2",
+        "source-map-js": ">=0.6.2 <2.0.0"
+      },
+      "bin": {
+        "sass": "sass.js"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "optionalDependencies": {
+        "@parcel/watcher": "^2.4.1"
+      }
+    },
+    "node_modules/scss": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/scss/-/scss-0.2.4.tgz",
+      "integrity": "sha512-4u8V87F+Q/upVhUmhPnB4C1R11xojkRkWjExL2v0CX2EXTg18VrKd+9JWoeyCp2VEMdSpJsyAvVU+rVjogh51A==",
+      "dependencies": {
+        "ometa": "0.2.2"
+      },
+      "engines": {
+        "node": ">= 0.2.0"
+      }
+    },
     "node_modules/semver": {
       "version": "6.3.1",
       "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.1.tgz",
@@ -3050,6 +3527,19 @@
         "url": "https://github.com/sponsors/SuperchupuDev"
       }
     },
+    "node_modules/to-regex-range": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
+      "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "is-number": "^7.0.0"
+      },
+      "engines": {
+        "node": ">=8.0"
+      }
+    },
     "node_modules/totalist": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/totalist/-/totalist-3.0.1.tgz",

vue3/project3/package.json

@@ -15,6 +15,8 @@
   },
   "dependencies": {
     "axios": "^1.11.0",
+    "sass": "^1.91.0",
+    "scss": "^0.2.4",
     "vue": "^3.5.18"
   },
   "devDependencies": {

vue3/project3/src/App.vue

@@ -1,4 +1,4 @@
-<template>
+<!-- <template>
   <div>
     <!-- <Demo1></Demo1> -->
      <!-- <Demo3></Demo3> -->
@@ -92,4 +92,4 @@ let list:Person[] = reactive([{
 
 </script>
 <style>
-</style>
+</style> -->

事件监听.html

@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+
+    <style>
+        #box1 {
+            width: 400px;
+            height: 400px;
+            background: #00f;
+        }
+
+        #box2 {
+            width: 200px;
+            height: 200px;
+            background: #ff0;
+        }
+    </style>
+
+</head>
+
+<body>
+    <div id="box1">
+        <div id="box2"></div>
+    </div>
+    <script>
+
+        const box1 = document.getElementById("box1");
+        const box2 = document.getElementById("box2");
+        box1.addEventListener('click', function () {
+            console.log("大盒子")
+        },false)
+        box2.addEventListener('click', function () {
+            console.log("小盒子")
+        },false)
+    </script>
+</body>
+
+</html>

原型/1.事件委托.html

@@ -0,0 +1,43 @@
+<!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>
+    <!-- 
+        事件委托:
+            减少内存消耗 避免多次循环
+    -->
+    <ul id="list">
+        <li>1</li>
+        <li>2</li>
+        <li>3</li>
+        <li>4</li>
+    </ul>
+    <button class="btn">添加</button>
+    <script>
+        var list = document.getElementById("list");
+        var lists = document.querySelectorAll("#list li");
+        var btn = document.getElementsByClassName("btn")[0];
+        // console.log(btn)
+        btn.onclick = function() {
+           var li1 = document.createElement("li");
+           console.log(li1)
+           li1.innerText = Math.round(Math.random()*9+1);
+           list.appendChild(li1);
+        }
+        list.onclick = function(event) {
+            console.log(event)
+            if(event.target.nodeName == 'LI') {
+                console.log(event.target.innerText)
+            }
+        }
+        // lists.onclick = function(event) {
+        //     console.log(event,'121')
+        // }
+        // console.log(lists)
+    </script>
+</body>
+</html>

原型/2.this指向.html

@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+    <style>
+        #box {
+            width: 200px;
+            height: 200px;
+            background: #00f;
+        }
+    </style>
+</head>
+<body>
+    <div id="box"></div>
+    <script>
+        var box = document.getElementById("box");
+        // 1.点击事件 this指向点击对象
+        // box.onclick = function() {
+        //     console.log(this);
+        // }
+        // 2.定时器  指向window
+        // setInterval(function() {
+        //     console.log(this)
+        // },1000)
+        // window.onclick = function() {
+        //     setInterval(()=>{
+        //         console.log(this)
+        //     },2000)
+        // }
+        // box.onclick = function() {
+        //     setInterval(()=>{
+        //         console.log(this)
+        //     },2000)
+        // }
+        // 3.对象中 指向当前对象
+        // var obj = {
+        //     name:"Lucy",
+        //     age:10,
+        //     address:function() {
+        //         console.log(this);
+        //     }
+        // }
+        // obj.address();
+        // 4.函数中 this执行window
+        function fn1() {
+            console.log(this);
+        }
+        fn1();
+    </script>
+</body>
+</html>

原型/3.修改this指向.html

@@ -0,0 +1,31 @@
+<!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 fn1(x,y) {
+            var sum = x + y;
+            console.log(sum,'sum');
+            console.log(this,'this');
+            console.log(this.name,'name');
+        }
+        var obj = {
+            name:"图图"
+        }
+        fn1(2,3)
+        fn1.bind(obj,2,3)();
+        // fn1.apply(obj,[2,3])
+        // fn1.call(obj,2,3)
+        /**
+         * call bind apply 区别
+         * 1.bind无法直接调用 call和apply可以直接调用
+         * 2.call和bind从第二项开始，要传入的参数是逐个传入的
+         * 3.apply从第二项开始，要传入的参数在数组中逐个传入
+        */
+    </script>
+</body>
+</html>