通过调用 OrderBy()，然后零次或多次调用 ThenBy().您无法通过单次调用 OrderBy()来做到这一点.

Ordering by multiple columns in LINQ works by calling OrderBy() followed by zero or more calls to ThenBy(). You can't do this using a single call to OrderBy().

例如，如果您想按 a 和 b 列进行排序，则必须生成一个类似于以下内容的表达式:

For example, if you can want to sort by the columns a and b, you will have to generate an expression that looks something like:

items.OrderBy(p => p.a).ThenBy(p => p.b)