如何检测字符串出现的次数？

Function CheckTheChar(TheChar,TheString)
' TheChar="要检测的字符串".
' TheString="待检测的字符串".
if inStr(TheString,TheChar) then
for n =1 to Len(TheString)
if Mid(TheString,n,Len(TheChar))=TheChar then
CheckTheChar=CheckTheChar+1
End if
Next
CheckTheChar="这个字符"&CheckTheChar&"次"
else
CheckTheChar="0次"
end if
End Function