auto save

my_search.py

@@ -10,9 +10,14 @@ def A(alist,num):
     while min<=max:
         mid=(min+max)//2
         caide=alist[mid]
-        if caide==zhaode:
+        if caide==num:
             return mid
-        elif caide < zhaode:
+        elif caide < num:
             min=mid+1
-        elif caide > zhaode:
+        elif caide > num:
             max=mid-1
+    return None
+
+B = A(alist,num)
+print("这个数是",num)
+print("这个数的索引值是",B)
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