save project

diy2.py

+1=3
+username='py'
+userpassword='428319'
+while True:
+    if i>0:
+        name=input("请输入账户名:")
+        password=input("请输入密码:")
+        i=i-1
+        print("还剩"+str(i)+"次机会")
+        if username==name and userpassword==password:
+            print("登录成功")
+            break
+        if username!=name:
+            print("重新输入名字")
+            continue
+        if userpassword!=password:
+            print("重新输入密码")
+    else:
+        print("账号已锁定")
+        exit()
+print("欢迎来到贝尔编程")
\ No newline at end of file