len: 'abcdefg'.length | str='abcde'; str.length
================
mid:
vbs: mid(str,i,length)
js: str.substr(i-1,length)
================
chr
vbs: chr(65) & chr (66) & chr(67)
js: String.fromCharCode(65,66,67...)
==================
asc
vbs: asc("A")
js: "ABCD".charCodeAt(0) //返回65
"ABCD".charCodeAt(1) //返回66
================
mid:
vbs: mid(str,i,length)
js: str.substr(i-1,length)
================
chr
vbs: chr(65) & chr (66) & chr(67)
js: String.fromCharCode(65,66,67...)
==================
asc
vbs: asc("A")
js: "ABCD".charCodeAt(0) //返回65
"ABCD".charCodeAt(1) //返回66
相应的MidB("abc一二三", 12, 1)的上标可以到12,MidB("abc", 3, 1)为3,MidB("一二三", 6, 1)为6
根本就不一样
可以用JS调用VBS的函数来实现