auto save

diy2.py

+bingo_num = 2
+num_list = [1,3,5,8,11,15,17,18,20,21]
+low = 0
+high = len(num_list)-1
+
+
+
+while low <= high:
+    mid = (low + high) // 2
+    guess = num_list[mid]
+    if guess == bingo_num:
+        print("找到,在",mid)
+        break
+    elif guess< bingo_num:
+        low = mid+1
+    elif guess< bingo_num:
+        high = mid-1
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