在select的change事件中修改qualityFactor
http://localhost:8081/V10/Docs/content/webframe.html#JavascriptLibrary~GC.Spread.Sheets.Print.PrintInfo~qualityFactor.html
$("#select").change(function(){
var quality = $("#select").val()
var sheet = spread.getActiveSheet()
var printInfo = sheet.printInfo()
printInfo.qualityFactor(quality )
sheet.printInfo(printInfo)
}) |