Question

在下面的代码中，我尝试将text fromString次toString替换为public static void main(String[] args) { String fromString = "aaa(bbb)"; String toString = "X"; String text = "aaa(bbb) aaa(bbb)"; String resultString = text.replaceAll(fromString, toString); System.out.println(resultString); }，但不进行替换。如何在正则表达式中设置括号以使其工作？

$script .= "$(document).ready(function() {";
$script .= "$('img.thumbnail').click(function() {";
$script .= "window.location.href='".$href."'.replace(/__selected_service__/, selected_service);";
$script .= "});";
$script .= "});";

$s .= '<input type="radio" name="app_select_services" id="'.$service->ID.'" value="'.$service->ID.'"'.$sel.' /><label for="'.$service->ID.'"><img class="thumbnail" src="http://kerrymotorservices.co.uk/wp-content/uploads/2015/04/'.$service->ID.'.png" title="'.$service_description.'"></label>';

Answer 1

replaceAll使用正则表达式作为其第一个参数。括号()用于capturing groups，因此需要转义

String fromString = "aaa\\(bbb\\)";

由于you can't modify输入字符串，您可以使用Pattern.quote

String resultString = text.replaceAll(Pattern.quote(fromString), toString);

或者只是String.replace可以使用不使用正则表达式参数

String resultString = text.replace(fromString, toString);

Java用括号替换所有

1 个答案: