save project

binary_search.py

-import random
-alist=[]
-for i in range(1,101):
-    alist.append(i)
-num=random.choice(alist)
-def binary_search(alist,num):
-    low=0
-    high=len(alist)-1
-    while low<high:
-        mid=(low+high)//2
+import csv
+subject=["姓名","语文","数学","英语"]
+score1=["小贝",98,99,92]
+score2=["聪聪",95,91,95]
+with open("score.csv","w",encoding="utf-8")as csvfile:
+    whiter=csv.writer(csvfile)
+    whiter.writerow(subject)
+    whiter.writerow(score1)
+    whiter.writerow(score2)
\ No newline at end of file
-        guess_num=alist[mid]
-        if guess_num==num:
-            return mid
-        elif guess_num<num:
-            low=mid+1
-        else:
-            high=mid-1
-    return None
-result=binary_search(alist,num)
-print("老师给的数是",num)
-print("在列表里面的索引为",result)
\ No newline at end of file

score.csv

+姓名,语文,数学,英语
+小贝,98,99,92
+聪聪,95,91,95