so I did ,与so did I的区别

题目

so I did ,与so did I的区别

答案

so I did对前面的情况表示肯定
so did I 表示前面所说的情况也适合于我.
如
You worked very hard.你很努力学习.
So I did.是的,我很努力学习.
He worked very hard, so did I .他很努力学习,我也是.