save project

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 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!")
-        break
-    if username !=name:
-        print("用户名输入错误")
-        break
-    if username !=password:
-        print("密码输入错误")
-        continue
-print("欢迎来到贝尔编程!")
+    if i>0:
+        pass
+        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 username !=name:
+            print("用户名输入错误")
+            print("你还有"+str(i)+"次登入计划")
+            continue
+        if username !=password:
+            print("密码输入错误")
+            print("你还有"+str(i)+"次登入计划"）
+    else:
+        print("请来我司") 
+        exit()
+    print("欢迎来到贝尔编程!")