fix: catch not connect to network exception

STranslate/Utils/HttpUtil.cs

@@ -60,6 +60,8 @@ namespace STranslate.Utils
         public static async Task<string> GetAsync(string urlpath)
         {
             using (var client = new HttpClient())
+            {
+                try
                 {
                     var respContent = await client.GetAsync(urlpath);
 
@@ -67,6 +69,11 @@ namespace STranslate.Utils
 
                     return respStr;
                 }
+                catch (Exception ex)
+                {
+                    throw ex;
+                }
+            }
         }
     }
 }

STranslate/Utils/TranslateUtil.cs

@@ -60,6 +60,8 @@ namespace STranslate.Utils
         /// <param name="source">当前语言</param>
         /// <returns></returns>
         public static async Task<string> TranslateBaiduAsync(string appID, string secretKey, string text, LanguageEnum target, LanguageEnum source = LanguageEnum.AUTO)
+        {
+            try
             {
                 Random rd = new Random();
                 string salt = rd.Next(100000).ToString();
@@ -93,6 +95,11 @@ namespace STranslate.Utils
                 }
                 return string.Empty;
             }
+            catch (Exception ex)
+            {
+                throw ex;
+            }
+        }
         // 计算MD5值
         public static string EncryptString(string str)
         {

STranslate/ViewModel/MainVM.cs

@@ -18,8 +18,6 @@ namespace STranslate.ViewModel
 
         private string Text;
         public MainVM()
-        {
-            try
         {
             //初始化界面参数
             InputCombo = LanguageEnumDict.Keys.ToList();
@@ -44,6 +42,8 @@ namespace STranslate.ViewModel
             {
                 return string.IsNullOrEmpty(InputTxt) ? false : true;
             }, async (_) =>
+            {
+                try
                 {
                     Text = InputTxt;
 
@@ -63,14 +63,12 @@ namespace STranslate.ViewModel
                         return;
                     }
                     OutputTxt = translateResp;
-                    Clipboard.SetText(OutputTxt);
-                });
-
                 }
                 catch (Exception ex)
                 {
                     OutputTxt = ex.Message;
                 }
+            });
         }
 
         public ICommand TranslateCmd { get; private set; }