auto save

1.py

+import turtle
+uname="python"
+upw="123456"
+i=3    #初始化输入次数
+# 无限循环
+while True:
+    if i>0:
+        #zh=input("请输入账号")
+        #mm=input("请输入密码")
+        zh=turtle.textinput("提示","请输入账号")
+        mm=turtle.textinput("提示","请输入密码")
+        i-=1   #相当于i=i-1
+        if zh==uname and mm==upw:
+            print("登录成功！")
+            break
+        if zh!=uname :
+            print("账号错误") 
+            print("您还有"+str(i)+"次机会")   
+            continue
+        if mm!=upw:
+            print("密码错误")
+            print("您还有"+str(i)+"次机会")
+    else:
+        print("账号被锁定~")
+        exit()      #退出程序
+print("欢迎进入贝尔编程！")

diy2.py

@@ -5,5 +5,6 @@ while True:
     password = input("请输入密码:")
     if name == username and password == userpassword:
         print("登录成功!")
+        break
     print("用户名和密码错误!请重新输入")
 print("欢迎来到贝尔编程!")
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