save project

binary_search.py

@@ -8,4 +8,9 @@ while v>f:
     sa= (v+f)//2
     guess_num==num_list[sa]
     if guess_num==d:
-        print()
\ No newline at end of file
+        print('到'sa)
+        break
+    elif guess_num<d:
+        f=sa+1
+    elif guess_num:
+        v=sa-1
\ No newline at end of file