save project

diy2.py

+username = "python"
+userpassword = "123456"
+while True:
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name == username and password == userpassword:
+        print("登录成功!")
+    print("用户名和密码错误!请重新输入")
+print("欢迎来到贝尔编程!")
\ No newline at end of file

大

+++ "b/\345\244\247"

大风车.py

+import turtle
+import turtle
+
+pen = turtle.Pen()
+distance=1
+for i in range(300):
+    pen.forward(distance)
+    pen.right(91)
+    distance+=1
+pen.hideturtle()
+turtle.done()   
\ No newline at end of file

账号登录.py

+i = 3 
+i = 3 
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name = input("输入账号: ")
+        password = input("输入密码: ")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功！")
+            break
+        if name != username:
+            print("账号错误，重新输入!")
+            print("温馨提示：你还有" + str(i) + "次机会")
+            continue
+        if password != userpassword:
+            print("密码错误，重新输入!")
+            print("温馨提示：你还有" + str(i) +" 次机会")
+    else:
+        print("账号已锁定，请来我司解锁")
+        exit()       
+print("欢迎来到贝尔编程")       
\ No newline at end of file