I want to output a string that welcomes a user to the application. I have the user's first, middle and last name. I would like to write the user's full name, i.e. I want to output a string that welcomes a user
阅读背景：
C＃：参数化字符串，仅在“完整”参数之间有空格？
来源：互联网
分享到：
