save project

my_search.py

 a=[1,3,5,8,11,15,17,18,20,21]
-low=0
-h=len(a)-1
-shu=1         #找的数
 
-while low<=h:
-    mid = (low+h)//2
-    g=a[mid]
-    if g==shu:
-        print("找到了",mid)
-        break
-    elif g <shu:
-        low = mid+1
-    elif g>shu:
-        h = mid-1
\ No newline at end of file
+def erfen(alist,num):
+    low=0
+    h=len(alist)-1
+    while low<=h:
+        mid = (low+h)//2
+        g=alist[mid]
+        if g==num:
+            print("找到了",mid)
+            break
+        elif g <num:
+            low = mid+1
+        elif g>num:
+            h = mid-1
+
+erfen(a,15)
\ No newline at end of file