並前往http://web.ykes.ntpc.edu.tw/awk/awk(C)/%E8%87%AA%E7%84%B6%E6%95%99%E5%AD%B8%E5%85%A7%E5%AE%B9/STS%E8%88%87%E6%A8%A1%E7%B5%84%E6%95%99%E5%AD%B8%E6%B4%BB%E5%8B%95%E8%A8%AD%E8%A8%88/%E6%88%91%E6%8B%86%E6%88%91%E6%8B%86%E6%88%91%E6%8B%86%E6%8B%86%E6%8B%86/moment&lever.htm