@@ -0,0 +1,35 @@
+# coding = utf-8
+__author__= 'liez'
+
+import random
+import sqlite3
+
+def make_number(num, length):
+    str = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
+    a = []
+    i = 0
+    while i < num:
+        numstr = ''
+        for j in range(length):
+            numstr += random.choice(str)
+        if numstr not in a: #如果没重复
+            a.append(numstr)
+            i += 1
+    print(a)
+    return a
+
+def save(a):
+    try:
+        connect = sqlite3.connect('codelist.db')
+    except:
+        print("failed")
+    cur = connect.cursor()
+    cur.execute('create table if not exists codes(code char(20) primary key)')
+    for item in a:
+        cur.execute('insert into codes values (?)', [item])
+    print("success")
+    connect.commit()
+    cur.close()
+    connect.close()
+
+save(make_number(20, 10))