Answer 1

Answer 2

这是如何在ruby中打开mspaint

irb>print("mspaint  #{%x{path=c:/image/aj.jpg}}")# 
irb>print("mspaint  #{%x{mspaint a.jpg}}")# this is open your jpg file with mspaint
OR
irb>print("mspaint  #{%x{mspaint c:/image/a.jpg}}")#