auto save

my_search.py

-import random
+# a=12.3456191
+# print('%.4f' % a)#%格式化输出，.4代表小数 %对谁格式化
+# # a1=round(a,3)
+# # print(a1)
+# # #切片法
 
 
-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
+# price = 52
+# # txt = "The price is {} dollars"
+# txt = "The price is {:.2f} dollars"
+# print(txt.format(price))
 
 
-def binary_search(alist,num):
+for i in range(2,101):
\ No newline at end of file
+    for j in range (2,i):
+        if i%j == 0:
+            break
+    else:
+        print(i)
+
+for i in range(2,101):
+    a=1
+    for j in range (2,i):
+        if i%j == 0:
+            a=0
+    if a==1:
+        print(i)