12。请教几个命令的用法问题:
set fs=createobject("Scripting.FileSystemObject")
set thisfile=fs.opentextfile(whichfile)
numberstring=thisfile.readline
1。为什么打开一个文件的时候,总是先要创建一个对象(createobject("Scripting.FileSystemObject")?
2。readline是读一行的意思吗?
3。numA=clng(mid(numberstring,instr(numberstring,"A")+1,instr(numberstring,"B")-instr(numberstring,"A")-1))
中mid ,instr 什么意思?
4。out.writeLine(numberstring)是什么意思?