save project

Untitled-1.py.py

+i=3
+username = "zheng"
+userpassword = "245418"
+while True:
+    if i>0:
+        n = input("请输入用户名:")
+        m = input("请输入密码:")
+        if n == username and m == userpassword:
+            print("登录成功!")
+            break
+        if n != username:
+            input("用户名出错")
+            continue
+        if m !=userpassword:
+            input("密码出错")
+    else: 
+        print("账号已冻结")
+        exit()
+print("欢迎")
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