save project

.py

+import turtle
+p=turtle.Pen()
+x=-100
+y=0
+l=["red","yellow","blue","black",""]
+for i in range(3):
+    p.up()
+    p.goto(x,y)
+    p.down()
+    p.circle(50)
+    x=x+100
+x=-50
+y=-80
+for i in range(2):
+    p.up()
+    p.goto(x,y)
+    p.down()
+    p.circle(50)
+    x=x+100
+turtle.done()
\ No newline at end of file

diy2.py

-username = "python"
-userpassword = "123456"
+username = "p"
+userpassword = "1"
 while True:
 while True:
     name = input("请输入用户名:")
     name = input("请输入用户名:")
     password = input("请输入密码:")
     password = input("请输入密码:")
     if name == username and password == userpassword:
     if name == username and password == userpassword:
-        break        
-    print("用户名和密码错误!请重新输入")
+        break
+    if name != username and password == userpassword:
+        print("用户名错误!请重新输入")    
+    if name == username and password != userpassword:    
+        print("密码错误!请重新输入")
+    if name != username and password != userpassword:    
+        print("用户名和密码错误!请重新输入")
 print("登录成功!")
 print("登录成功!")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file