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更新 C#

leo 2024-04-22 12:22:24 +08:00
parent 9afe239e42
commit 781706f8db
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C%23.md

@ -67,4 +67,64 @@ select c
```
##
## VS2022
### 安裝
### 安裝 [下載連接](https://visualstudio.microsoft.com/zh-hant/vs/compare/)
### 下載後，若單純架設網站選擇ASP.NET 與 Node.js(之後寫Vue會用到)
### 若需要維護Winform 或是WPF 則選擇.NET桌面開發
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%871.png)
### 若需要快速建立，則直接使用我提供的DEMO去做開發
### 建立新專案
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%872.png)
### 選擇版本 (這邊以.NET6做教學 目前最新的.NET8)
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%873.png)
### 啟動
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%874.png)
### 安裝套件包(NuGet)
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%875.png)
### 設定資料庫連線
#### 於appsettings.json 中加入
```
//連接MYSQL
"ConnectionStrings": {
"tarefasConnection": "server=140.125.21.65;port=3307;uid=VIP125;pwd=@VIPvip125;database=VIP125"
}
```
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%876.png)
#### 於Program.cs中加入設定
```
builder.Services.AddDbContext<SqlContext>(opt =>
{
string connectionString = builder.Configuration.GetConnectionString("tarefasConnection");
var serverVersion = ServerVersion.AutoDetect(connectionString);
opt.UseMySql(connectionString, serverVersion);
});
```
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%877.png)
### 建立與資料庫table的連線
#### 創建Model
建議將創建的Model名稱第一個字大寫，資料庫內部資料表名用小寫，這樣較好對比
Model內容需要跟資料表的欄位名稱相對應
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%879.png)
#### 創建Services
Haskey指的是不會重複的
像是身份證字號這種的就不會重複
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%878.png)
### 創建控制器
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%8710.png)
### 創建出來的頁面
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%8711.png)
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%8712.png)
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%8713.png)
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%8714.png)
![](http://140.125.21.65:8418/Education/Backend/raw/branch/master/C_shape/img/%E5%9C%96%E7%89%8715.png)