first commit

历届学生/font-end-nine/项目练习/学生项目/郑若怡/案例练习/上课练习/7-5/1.txt

@@ -0,0 +1 @@
+嘻嘻嘻嘻

历届学生/font-end-nine/项目练习/学生项目/郑若怡/案例练习/上课练习/7-5/index.js

@@ -0,0 +1,23 @@
+//console.log(111111);
+// require是从外部获取一个模块接口
+
+// 方法1
+// const a = require("./until")
+// a.test()
+
+
+// 方法2   (解构)
+// const { test } = require("./until")
+// test()
+
+
+// 方法3
+// const a = require("./until")
+// a.a.test()
+//console.log(require("./until"));
+
+
+// 自己生成文件
+const fs = require("fs")
+// 文件生成位置名字，内容
+fs.writeFileSync("./1.txt", "ssm")

历届学生/font-end-nine/项目练习/学生项目/郑若怡/案例练习/上课练习/7-5/package-lock.json

@@ -0,0 +1,157 @@
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+  "lockfileVersion": 2,
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+    },
+    "node_modules/axios": {
+      "version": "0.27.2",
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+    "node_modules/delayed-stream": {
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+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
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+    "node_modules/form-data": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
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+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
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+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
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+      "dependencies": {
+        "mime-db": "1.52.0"
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+      "engines": {
+        "node": ">= 0.6"
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+    },
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+      "version": "0.27.2",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.27.2.tgz",
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+      "requires": {
+        "follow-redirects": "^1.14.9",
+        "form-data": "^4.0.0"
+      }
+    },
+    "combined-stream": {
+      "version": "1.0.8",
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+      }
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+    "delayed-stream": {
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+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
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+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      }
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+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
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+    },
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+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
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+}

历届学生/font-end-nine/项目练习/学生项目/郑若怡/案例练习/上课练习/7-5/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "7-5",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "aa": "node-dev index.js"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "axios": "^0.27.2"
+  }
+}

历届学生/font-end-nine/项目练习/学生项目/郑若怡/案例练习/上课练习/7-5/pc/index.js

@@ -0,0 +1,93 @@
+// 引入插件
+
+const request = require('request')
+
+const iconv = require('iconv-lite')
+
+// 把字符串转化为虚拟dom 
+const cheerio = require('cheerio')
+
+const fs = require('fs')
+
+
+// 所有页数数组 主要用来存页面地址 
+var pageArr = []
+
+// 基地址
+var url = 'https://pic.netbian.com'
+
+// 下标
+var pageIndex = 0
+
+// 详情页地址
+var infoArr = []
+var infoIndex = 0
+
+// 生成页面链接
+for (var i = 1; i <= 3; i++) {
+    if (i == 1) {
+        pageArr.push(url)
+    } else {
+        pageArr.push(`${url}/index_${i}.html`)
+    }
+}
+console.log("pageArr: ", pageArr);
+
+function requestPage() {
+    get(pageArr[pageIndex], ($) => {
+        $(".slist li").each(function (index, ele) {
+            // hasClass获取标签类名
+            if (!$(this).hasClass("nextpage")) {//nextpage是下一页所以要排除
+                infoArr.push(
+                    `${url}${$(this).find("a").attr("href")}`
+                )
+            }
+
+        })
+        requestInfo()
+        // console.log("infoArr:", infoArr);
+    })
+
+}
+
+//生成详情页
+function requestInfo() {
+    get(infoArr[infoIndex], ($) => {
+        request(`${url}${$(".photo-pic img").attr("src")}`)
+
+            .pipe(fs.createWriteStream(`./img/${Math.random() * 1000 + `${Date.now()}`}.png`))
+
+        infoIndex += 1
+        if (infoIndex < infoArr.length) {
+            requestInfo()
+        } else {
+            pageIndex += 1
+            if (pageIndex < pageArr.length) {
+                requestPage()
+            }
+
+        }
+    })
+
+
+}
+
+// gbk转换
+function get(url, callback) {
+    request({
+        url: url,
+        method: 'GET',
+        encoding: 'binary'
+    }, function (error, response, body) {
+        var buf = new Buffer(body, 'binary');
+        var str2 = iconv.decode(buf, 'gbk');
+        // console.log(str2);
+
+        // $就是虚拟dom
+        const $ = cheerio.load(str2)
+        // callback把$返回出去
+        callback($)
+    })
+}
+
+requestPage()

历届学生/font-end-nine/项目练习/学生项目/郑若怡/案例练习/上课练习/7-5/pc/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "pc",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "a": "node index.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "cheerio": "^1.0.0-rc.12",
+    "fs": "^0.0.1-security",
+    "iconv-lite": "^0.6.3",
+    "request": "^2.88.2"
+  }
+}

历届学生/font-end-nine/项目练习/学生项目/郑若怡/案例练习/上课练习/7-5/until.js

@@ -0,0 +1,11 @@
+class until {
+    test() {
+        console.log("hhhhhhh");
+    }
+}
+// exports是接口
+// 方法1、2
+// module.exports = new until()
+
+// 方法3
+exports.a = new until()