主题：谢谢各位了，我自己来行了！ -- 锦候

建议如下：

1. First step, try to read a text file line by line

2. Use the split() function to put the readings into a string array. From the array, it's easy to find out the upperbound, so you will know how many figures in that line.

3. If you have not trouble doing step 1 and 2, you now can consider use a data structure to hold the readings, such as System.Collections.Generic.Dictionary(Of Integer, String), use the sales person id as the key.

4. Loop through the collection, to perform your calculation.

Good luck with your assignment!