完善了PrintState函数

src/bus_io.c

@@ -145,3 +145,59 @@ rail_node_t *ReadConfigFile()
         return NULL;
     }
 }
+
+char* PrintState()
+{
+    
+    int count;
+    rail_node_t *p=NULL;
+    char target[20],clockwise[20],counterclockwise[20];
+    for(count=0,p=rails;p!=NULL;p=p->next_node,count++)
+    {
+        target[count]='0';
+        clockwise[count]='0';
+        counterclockwise[count]='0';
+    }   //遍历轨道链表，将所有站点初始化为0，即：无任何请求；
+
+    bus_query_t *t=NULL;
+    int i;
+    for(t=queries;t!=NULL;t=t->next_node)
+    {   
+        i=t->node->id-1;
+        if(t->type==0)
+        {
+            clockwise[i]='1';
+        }
+        else if(t->time==1)
+        {
+            counterclockwise[i]='1';
+        }
+        else if(t->type==2)
+        {
+            target[i]='1';
+        }
+    }   //遍历请求链表，将有请求的站点按照不同类型标记为1
+    
+    char line1[100],line2[10],line3[10],line4[100],line5[10],line6[100],line7[100];
+    
+    sprintf(line1,"TIME:%d\n",bus_time);
+    sprintf(line2,"BUS:\n");
+    sprintf(line3,"position:%d\n",GetBusPosition());
+    sprintf(line4,"target:%s\n",target);
+    sprintf(line5,"STATION:\n");
+    sprintf(line6,"clockwise:%s\n",clockwise);
+    sprintf(line7,"counterclockwise:%s\n",counterclockwise); //分别得到每一行的字符串
+    
+    strcat(line1,line2);
+    strcat(line1,line3);
+    strcat(line1,line4);
+    strcat(line1,line5);
+    strcat(line1,line6);
+    strcat(line1,line7);    //将7行字符串合并在一起
+    
+    return line1;   //返回合并后的字符串
+    
+    
+
+    
+}