save project

diy2.py

 username = "7777777"
-userpassword = "wai77"
+userpassword = "waiqq"
+i=3
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if username==name and userpassword==password:    
-        print("登陆成功")
-        break
-    if username != name:
-        print("用户名不存在")
-        continue
-    if userpassword != password:
-        print("密码错误 请重新输入")
\ No newline at end of file
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i-=1
+        if username==name and userpassword==password:    
+            print("登陆成功")
+            break
+        if username != name:
+            print("用户名不存在")
+            print("温馨提示:你还有"+str(i)+"次机会")
+            continue
+        if userpassword != password:
+            print("密码错误 请重新输入")
+            print("温馨提示:你还有"+str(i)+"次机会")
+    else:
+        print("以被锁")
+        exit()
\ No newline at end of file