diff --git a/src/bus_io.c b/src/bus_io.c
index 27fb895..b79100a 100644
--- a/src/bus_io.c
+++ b/src/bus_io.c
@@ -2,3 +2,36 @@
 // Created by ricardo on 2022/5/6.
 //
 #include "bus_io.h"
+#include "define.h"
+
+int ReadInput(char* inputString)
+{
+    
+    char src[20];
+    int num;
+    sscanf(inputString,"%[a-z] %d",src,&num);
+    if (0 == strcmp("clock",src))
+    {
+        return IO_CLOCK;
+    }
+    else if (0 == strcmp("counterclockwise",src))
+    {
+        bus_query_t *CreateQuery(BUS_COUNTER_CLOCK_WISE, FindNode(num));
+        return IO_READING;
+    }
+    else if (0 == strcmp("clockwise",src))
+    {
+        bus_query_t *CreateQuery(BUS_CLOCK_WISE,FindNode(num));
+        return IO_READING;
+    }
+    else if (0 == strcmp("target",src))
+    {
+        bus_query_t *CreateQuery(BUS_TARGET,FindNode(num));
+        return IO_READING;
+    }
+    else if (0 == strcmp("end",src))
+    {
+        return IO_END;
+    }
+    
+}