save project

my_search.py

@@ -3,4 +3,16 @@ alist = []
 for i in range(1, 101):
     alist.append(i)
 num = random.choice(alist)
-print(alist)
\ No newline at end of file
+
+def A(alist,num):
+    min = 0
+    max =len(alist)-1
+    while min<=max:
+        mid=(min+max)//2
+        caide=alist[mid]
+        if caide==zhaode:
+            return mid
+        elif caide < zhaode:
+            min=mid+1
+        elif caide > zhaode:
+            max=mid-1