VBScript里面哪个函数具有和delphi的copy类似的功能?(50分)

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如题! 我需要根据位置替换一个字符串中的子串
 
有现成的
Visual Basic Scripting Edition
Replace FunctionSee Also
Filter Function
Requirements
Version 2
[This topic is part of a beta release and is subject to change in future releases. Blank topics are included as placeholders.]
Returns a string in which a specified substring has been replaced with another substring a specified number of times.
Replace(expression, find, replacewith[, start[, count[, compare]]])
Arguments
expression
Required. String expression containing substring to replace.
find
Required. Substring being searched for.
replacewith
Required. Replacement substring.
start
Optional. Position within expression where substring search is to begin
. If omitted, 1 is assumed. Must be used in conjunction with count.
count
Optional. Number of substring substitutions to perform. If omitted, the default value is -1, which means make all possible substitutions. Must be used in conjunction with start.
compare
Optional. Numeric value indicating the kind of comparison to use when evaluating substrings. See Settings section for values. If omitted, the default value is 0, which means perform a binary comparison.
Settings
The compare argument can have the following values:
Constant Value Description
vbBinaryCompare 0 Perform a binary comparison.
vbTextCompare 1 Perform a textual comparison.
Return Values
Replace returns the following values:
If Replace returns
expression is zero-length Zero-length string ("").
expression is Null An error.
find is zero-length Copy of expression.
replacewith is zero-length Copy of expression with all occurences of find removed.
start > Len(expression) Zero-length string.
count is 0 Copy of expression.
Remarks
The return value of the Replace function is a string, with substitutions made, that begin
s at the position specified by start and and concludes at the end of the expression string. It is not a copy of the original string from start to finish.
The following example uses the Replace function to return a string:
Dim MyString
MyString = Replace("XXpXXPXXp", "p", "Y") ' A binary comparison starting at the begin
ning of the string. Returns "XXYXXPXXY".
MyString = Replace("XXpXXPXXp", "p", "Y", ' A textual comparison starting at position 3. Returns "YXXYXXY". 3, -1, 1)
Requirements
Version 2
See Also
Filter Function

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不符合要求。 我要求根据位置来替换字符,不是搜寻字符串来替换
 
你要的那个功能VBScript本身不支持,不过有控件可以支持(ADO控件),想知道吗?
或者绕过,用left,right,mid...。
 
直接根据下标赋值不行么???
 
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