数字格式：如何转换1＆QUOT; 01 QUOT，2至＆QUOT; 02＆QUOT;等？
问题描述：
我有号码，如1，2，3，我想使他们成为字符串，01，02和03。我怎样才能做到这一点？
I have numbers like 1, 2, and 3, and I would like to make them into strings, "01", "02" and "03". How can I do this?
答
这里是MSDN上的格式条款数字的。要垫2个数字，你可以使用：
Here is the MSDN article on formatting numbers. To pad to 2 digits, you can use:
n.ToString("D2")