问题
I'm trying to print the smallest of three given (e.g. 4,6,2) values by making a trace table and a corresponding flowchart, but I have no idea where to begin. The trace table has five columns: 'statement,' 'a', 'b,' 'c,' and 'smallest.'
Where do I begin? Also, would it change if two of the values are the same (e.g. 4,6,4), or if one of them is negative (4,6,-4)?
来源：https://stackoverflow.com/questions/55368853/how-do-i-make-a-trace-table-to-find-print-the-smallest-value-of-three-given-in