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          合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。
          廣告
        
                        
                
  

                

                
    
                
        
                
                            
# 類庫
```
        //圖片轉為base64編碼的字符串
        public static string BitMapToBase64String(Bitmap bmp)
        {
            try
            {
                MemoryStream ms = new MemoryStream();
                bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                byte[] arr = new byte[ms.Length];
                ms.Position = 0;
                ms.Read(arr, 0, (int)ms.Length);
                ms.Close();
                return Convert.ToBase64String(arr);
            }
            catch (Exception ex)
            {
                return null;
            }
        }
```

# 用法
```
string b64= QRCode.GenerateBase64(@"\images\cross.png", "http://www.baidu.com");
Response.Write("<img src='data:image/png;base64," + b64+"'>");//data:image/jpeg;base64,base64編碼的jpeg圖片數據

```
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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