| 实例化： | QRegExpValidator |
This element provides a validator, which counts as valid any string which matches a specified regular expression.
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regExp : regExp |
This property holds the regular expression used for validation.
Note that this property should be a regular expression in JS syntax, e.g /a/ for the regular expression matching "a".
By default, this property contains a regular expression with the pattern .* that matches any string.
