Method replace with Qregxp

Hello everybody,
I have a QString object,and i want to replace slash,backslash and spaces to underscore character.
How can i do it with the method replace with qregxp

Thank you

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Added after 35 minutes:

I found the solution of my problem.

Code:

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myQString.replace(QRegExp("[\\\\/ ]"), QString("_"));

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Thank you

If I understand You, try some construction:

Code:

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QString s;
s.replace (QRegExp("^*[\\/ ]*"), "_");

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I may be wrong in the regular expression.