save project

diy2.py

+username = "python"
+userpassword = "123456"
+i=3
+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("用户名错误")
+            print("你还有"+str(i)+"机会")
+            continue
+        if password !=userpassword:
+            print("密码错误")
+            print("你还有"+str(i)+"机会")
+    else:
+         print("几乎")
+         exit()
+print("欢迎来到经济改革")
+
+    
+
+    
\ No newline at end of file