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]
\ No newline at end of file
+a=5
+num_list = [1,2,3,4,5,6,7,8,9]
+low=0
+light=len(num_list)-1
+while low<=a:
+    mid=(low+hight)//2
+    g=num_list[mid]
+    if g==a:
+        print(mid)
+        break
+    elif g>a:
+        low=mid+1
+    elif g<a:
+        low=mid-1
+
+
+
+
+
+if b>a:
+    b+=1
+if low<a:
+    a-=a
\ No newline at end of file