vbscript - Escape and replace quotations in VBS -

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i need escape character " replacing in vbs

i write 

 str=8505usafromto^1c0"ma  str = replace(str,chr(34),"""")

but seems " not escape string str

please, what's wrong , me fix that?

thanks

string literals need double quotes:

str = "8505usafromto^1c0 ma"

to escape double quote in string literal, use "" (double double quotes)

str = "8505usafromto^1c0""ma"

it makes no sense replace double quotes (chr(34)) in string double quotes ("""").

update:

if .readall()/.readline() string file , want change " in string, use

str = replace(str, """", "that's want see instead of each double quote")

in case want "" (double double quotes) replacements, need """""" (2 delimiters , 2 times 2 double quotes).


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