save project

aa.py

+import turtle
+pen=turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("black")
+color=["green","red","orange","yellow"]
+for i in range(1,99999):
+    pen.pencolor(color[i%4])
+    pen.forward(i)
+    pen.right(91)
+pen.hideturtle()
+turtle.done()
\ No newline at end of file

dd.py

+
+for i in range(1,10):
+    for j in range(1,i+1):
+        print(j,'*',i,'=',(j*i),end = " ")
+    print()
\ No newline at end of file

diy2.py

+i = 3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i -=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name != username:
+            print("用户名错误,请重新输入!")
+            print("温馨提示:您还有"+str(i)+"次登录机会")
+            continue
+        if password != userpassword:
+            print("密码输入有误,请重新输入!")
+            print("温馨提示:您还有" + str(i) + "次登录机会")
+    else:
+        print("你的账户已被锁定，请一个小时以后再来")
+        exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file