完成设置页面和退出页面，开卡页面的画图

readerAPI.h

@@ -0,0 +1,43 @@
+#ifndef READERAPI_H
+#define READERAPI_H
+
+#include <HF15693.h>
+
+
+class Reader
+{
+private:
+    int comNumber = -1; // com口号，若未连接为-1
+
+public:
+    bool is_connected()
+    {
+        return comNumber > 0;
+    }
+
+    bool connectReader()
+    {
+        if (t15portOpen(comNumber))
+        {
+            return true;
+        }
+        else
+        {
+            comNumber = -1;
+            return false;
+        }
+    }
+
+    void setComNumber(int comNumber)
+    {
+        this->comNumber = comNumber;
+    }
+
+    int getComNumber()
+    {
+        return comNumber;
+    }
+};
+
+
+#endif // READERAPI_H