The second option from the top is "Username." Press "Change" to enter in your new username and then click "Confirm" when you're ready to set it.
从上往下，第二排就是“用户名”修改选项，点击“修改”，然后输入你的新用户名，然后再点击“确定”。
Note that you'll need to change the username and password to the appropriate values for your MySQL account.
注意：你需要改变用户名和口令以适应你MySQL帐号。
Say for example, you want to change the concept of login in your application from just using username (which was where you started at in story 1), to username and password.
比如说，你想改变你的应用程序只用用户名登录的想法(这始于用户故事1)，转而使用用户名和口令登录。
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