From 5ddf967c40157cae17b918a79b74aa25c1e7e8a1 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Sun, 14 Apr 2024 21:24:59 +0800
Subject: [PATCH] note

---
 .../20240408 - \347\256\200\345\214\226.md"   | 113 ++++++++++++++++++
 ...36\345\210\240\347\256\200\345\214\226.md" |  64 ++++++++++
 2 files changed, 177 insertions(+)
 create mode 100644 "\351\202\261\346\245\267\346\235\255/20240408 - \347\256\200\345\214\226.md"
 create mode 100644 "\351\202\261\346\245\267\346\235\255/20240409 - \345\242\236\345\210\240\347\256\200\345\214\226.md"

diff --git "a/\351\202\261\346\245\267\346\235\255/20240408 - \347\256\200\345\214\226.md" "b/\351\202\261\346\245\267\346\235\255/20240408 - \347\256\200\345\214\226.md"
new file mode 100644
index 0000000..c9c789c
--- /dev/null
+++ "b/\351\202\261\346\245\267\346\235\255/20240408 - \347\256\200\345\214\226.md"	
@@ -0,0 +1,113 @@
+# 简化
+```js
+import Koa from "koa";
+import Router from "koa-router";
+import bodyParser from "koa-bodyparser";
+import cors from "koa2-cors";
+import { DataTypes, Op, Sequelize } from "sequelize";
+const app = new Koa();
+const router = new Router();
+const port = 3000;
+const sequelize = new Sequelize("userinfo", "sa", "123456", {
+    host: "LAPTOP-FRR7ESDC",
+    dialect: "mssql"
+})
+const user = sequelize.define("user", {
+    username: { type: DataTypes.STRING },
+    userage: { type: DataTypes.INTEGER },
+    usersex: { type: DataTypes.STRING },
+    userdes: { type: DataTypes.STRING }
+})
+await sequelize.sync();
+router.get("/user/:id?", async (ctx) => {
+    let keyword = ctx.request.query.keyword;
+    if (keyword) {
+        let list = await user.findAll({
+            where: {
+                [Op.or]: [
+                    { username: { [Op.like]: `%${keyword}%` } }
+                ]
+            }
+        })
+        ctx.body = {
+            code: 1000,
+            data: list,
+            msg: "获取数据成功"
+
+        }
+    } else {
+        let id = ctx.params.id * 1 || 0;
+        let data;
+        if (id > 0) {
+            let list = await user.findByPk(id);
+            data = list;
+        } else {
+            let list = await user.findAll();
+            data = list;
+        }
+        ctx.body = {
+            code: 1000,
+            data: data,
+            msg: "获取数据成功"
+        }
+    }
+})
+router.post("/user", async (ctx) => {
+    await user.create(ctx.request.body).then(res => {
+        ctx.body = ctx.request.body;
+        console.log("添加成功");
+    })
+})
+router.put("/user/:id?", async (ctx) => {
+    let id = ctx.params.id;
+    let data = ctx.request.body;
+    let list = await user.findByPk(id);
+    if (list) {
+        await user.update(data, {
+            where: {
+                id: id
+            }
+        }).then(() => {
+            ctx.body = {
+                code: 1000,
+                data: data,
+                msg: `修改id为${id}的用户成功`
+            }
+        })
+    } else {
+        ctx.body = {
+            code: 4000,
+            msg: `没有此用户`
+        }
+    }
+
+})
+router.del("/user/:id?", async (ctx) => {
+    let id = ctx.params.id;
+    let list = await user.findByPk(id);
+    if (list) {
+        await user.destroy({
+            where: {
+                id: id
+            }
+        }).then(() => {
+            ctx.body = {
+                code: 1000,
+                msg: `删除id为${id}的用户成功`
+            }
+        })
+    } else {
+        ctx.body = {
+            code: 4000,
+            msg: `没有此用户`
+        }
+    }
+})
+app.use(cors());
+app.use(bodyParser());
+app.use(router.routes());
+app.listen(port, () => {
+    console.log(`app is running at http://localhost:${port}`);
+})
+
+```
\ No newline at end of file
diff --git "a/\351\202\261\346\245\267\346\235\255/20240409 - \345\242\236\345\210\240\347\256\200\345\214\226.md" "b/\351\202\261\346\245\267\346\235\255/20240409 - \345\242\236\345\210\240\347\256\200\345\214\226.md"
new file mode 100644
index 0000000..ac31704
--- /dev/null
+++ "b/\351\202\261\346\245\267\346\235\255/20240409 - \345\242\236\345\210\240\347\256\200\345\214\226.md"	
@@ -0,0 +1,64 @@
+# 增删简化
+```js
+$(function () {
+    axios.get("http://localhost:3000/user").then(res => {
+        let data = res.data.data;
+        dataTable(data);
+    })
+})
+
+function Find() {
+    let keyword = $('[name="keyword"]').val();
+    axios.get(`http://localhost:3000/user?keyword=${keyword}`).then(res => {
+        let data = res.data;
+        if (data.code === 1000) {
+            let tr = $('[class^=tr]');
+            tr.remove();
+            dataTable(data.data);
+        }
+    })
+}
+
+function Add(){
+    location.href="./edit.html";
+}
+
+function Edit(id){
+    location.href="./edit.html?id="+id;
+}
+
+function Delete(id){
+    axios.delete(`http://localhost:3000/user/${id}?`).then(res=>{
+        let data=res.data;
+        if(data.code===1000){
+            let tr=$(".tr"+id);
+            tr.remove();
+        }else{
+            alert(data.msg);
+        }
+    })
+}
+
+function dataTable(arr) {
+    let num = 0;
+    arr.forEach(item => {
+        let tb = $("#table");
+        num++;
+        let html = `
+                <tr class="tr${item.id}">
+                    <td>${num}</td>
+                    <td>${item.username}</td>
+                    <td>${item.userage}</td>
+                    <td>${item.usersex}</td>
+                    <td>${item.userdes}</td>
+                    <td>
+                    <input type="button" value="编辑" onclick="Edit(${item.id})">
+                    <input type="button" value="删除" onclick="Delete(${item.id})">
+                    </td>
+                </tr>
+            `
+        tb.append(html)
+    });
+}
+
+```
\ No newline at end of file
-- 
Gitee