重新构建的批检仪主板程序

base/base.h

@@ -21,7 +21,7 @@ public:
     char operator [](int index){
         int size=this->size();
         if(index<0) index=size+index;
-        if(index>=size) return char(0);
+        if(index<0||index>=size) return char(0);
         return QByteArray::operator [](index);
     }
     myarray &operator =(const myarray &b){