save project

diy.4.py

 usename = "python"
 password = "123456"
 while True:
-    us = input("请输入您的用户名：")
-    if us != usename :
-        print("用户名不正确，请重新输入！")
-        continue
-    ps = input("请输入您的密码：")
-    if ps != password :
-        print("密码不正确，请重新输入！")
-        continue
-    if (us == usename)and(ps == password):
-        print("用户名,密码正确")
\ No newline at end of file
+    if i>0:
+        us = input("请输入您的用户名：")
+        if us != usename :
+            print("用户名不正确，请重新输入！")
+            continue
+        ps = input("请输入您的密码：")
+        if ps != password :
+            print("密码不正确，请重新输入！")
+            continue
+        if (us == usename)and(ps == password):
+            print("用户名,密码正确")
+            break
+    else:
+        print("您的账户已被锁定，请拿证件")：
+        exit()
\ No newline at end of file