save project

diy2.py

+i=3
 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-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 name !=username:
-        print("用户名不存在,请重新输入!")
-    if password !=userpassword: 
-        print("密码输入有误,请重新输入")
+while True:  
+    if i>0:     
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i=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!")
 print("欢迎来到贝尔编程!")
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