save project

c.py

+username='p'
+userpassword='123456'
+while True:
+    name=input('请输入账号')
+    password=input('请输入密码')
+    if name==username and password==userpassword:
+        print('登录成功')
+        break
+    elif name!=username:
+        print('账号错误')    
+    elif password!=userpassword:
+        print('密码错误')    
+print('欢饮来到。。。。。。')
+
+

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('账户错误')
+            print('账户错误'+'你还剩下'+str(i)+'次机会')
             continue
         if password!=userpassword:
-        print('密码错误')    
-        continue
+            
+            print('密码错误'+'你还剩下'+str(i)+'次机会')      
+    else:
+        print('拧的账号已被炸')
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file