将变量与多个值进行比较并使用“和”和“或”如果“条件vbscript

I am learning qtp and vbs mostly by myself. I need a function in qtp/vbs server 2008 that ads one day to current date then changes the places of dd and mm and transforms it to a numeric string for qtp to insert it to application under test. This is what I came up with, but the function gives back nothing at the end.I am learning qtp and vbs mostly by myself. I n