save project

diy2.py

 u = "python"
 us = "123456"
+i=3
 while True:
+    if i>0:    
         name = input("请输入用户名:")
         password = input("请输入密码:")
-    if name == u and password == us:
+        i=i-1
+        if u==name and us==password:
             print("登录成功!")
             break
+        
         if u!=name:
             print("用户名和密码错误!请重新输入")
-    if us!=password:
             continue
+            
+        if us!=password:
             print("密码错误")
-print("欢迎来到贝尔编程!")
\ No newline at end of file
+    else:
+        print("请到公司")
+        exit()
+    print("欢迎来到贝尔编程!")
\ No newline at end of file