fix

LunaTranslator/LunaTranslator/cishu/cishubase.py

@@ -30,8 +30,7 @@ class cishubase:
             except:
                 self.needinit = True
 
-            if res is None or res == "":
-                return
+            if res and len(res):
                 self.callback(res)
         except:
             pass

LunaTranslator/LunaTranslator/cishu/goo.py

@@ -17,7 +17,7 @@ class goo(cishubase):
         xx = re.sub("<a([\\s\\S]*?)>", "", xx)
 
         xx = re.sub("</a>", "", xx)
-
+        if len(xx):
             return (
                 '<div  style="text-align: center;"><a target="_blank" href="{}">link</a></div>'.format(
                     url

LunaTranslator/LunaTranslator/cishu/weblio.py

@@ -25,7 +25,7 @@ class weblio(cishubase):
             _all.append(xx)
 
         join = "<br>".join(_all)
-
+        if len(join):
             return (
                 '<div  style="text-align: center;"><a target="_blank" href="{}">link</a></div>'.format(
                     url

LunaTranslator/LunaTranslator/cishu/youdao.py

@@ -25,6 +25,8 @@ class youdao(cishubase):
             proxies=getproxy(),
         ).text
         fnd = re.findall('<section class="modules"(.*?)>([\\s\\S]*?)</section>', text)
+
+        if len(fnd[0][1]):
             return (
                 '<div  style="text-align: center;"><a target="_blank" href="{}">link</a></div><br>'.format(
                     "https://dict.youdao.com/result?word={}&lang={}".format(