save project

binary_search.py

 # 使用二分查找法，找出9和20在列表里面的索引
-num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
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+bingo_num = 20
+num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
+lo=0
+h=len(num_list)-1
+while lo < h:
+    m=(lo+h) // 2
+    guess_num = num_list[m]
+    if guess_num == bingo_num:
+        print("找到了,他在列表中的索引：",m)
+        break
+    elif guess_num < bingo_num:
+        lo = m+1
+    elif guess_num > bingo_num:
+        h = m+1
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