C# 核对阿雷拉小组的任何内容在比较长度之前是否为Null
原文：C# Check if any element in an Array Group is Null before comparing length
原文：C# Check if any element in an Array Group is Null before comparing length
I have a statement that compares the length of elements in all string arrays. string[][] allMyArrays= new string[][] { myArray1, myArray2, myArray3 }; lengthMismatch = allMyArrays.GroupBy(x => x....