auto save

cc.py

+import random
+
+alist = []
+for i in range(1, 101):
+    alist.append(i)
+num = random.choice(alist)
+# 请完善二分查找函数binary_search(),查找出num在列表alist里面的索引位置
+
+def binary_search(alist,num):
+    low=0
+    high=len(alist)-1
+    while low<=high:
+        mid=(low+high)//2
+        guess=alist[mid]
+        if guess == num:
+            return mid
+        elif guess < num:
+            low=mid+1
+        else:
+            high=mid-1
+# binary_search()
+a=num
+b=binary_search(alist,num)
+print("索引为",b)
+print("数字为",a)
\ No newline at end of file

my_search.py

 import random
 
-alist = []
+a = []
 for i in range(1, 101):
-    alist.append(i)
-num = random.choice(alist)
+    a.append(i)
+n = random.choice(a)
 # 请完善二分查找函数binary_search(),查找出num在列表alist里面的索引位置
 
-def binary_search(alist,num):
\ No newline at end of file
+def binary_search(alist,num):
+    low = 0
+    high = len(alist)-1
+    while low<=high:
+        mid=(low+high)//2
+        guess=alist[mid]
+        if guess == num:
+            return mid
+        elif guess < num:
+            low=mid+1
+        else:
+            high=mid-1
+    return None
+
+b=binary_search(a,n)
+print("随机的值是：",n)
+print("索引是：",x)
\ No newline at end of file