我正在尝试替换字符串中的某些字符，但是它不起作用。你能帮我么？
我的代码是：
String test = "ABC?!";
test = test.replaceAll("\\?","");
test= test.replaceAll("\\!, "");
非常感谢您对我的帮助。
答案 0 :(得分：3)
尝试 $qb->select(
'firstfield',
'secondfield',
'thirdfield',
'fourthfield',
)->from(Table, 'u');
$queryHaving = "CONCAT(firstfield, ' ', secondfield, ' ', thirdfield, ' ', fourthfield) regexp 'value'";
$qb->andhaving($queryHaving);
$queryHaving = "CONCAT(firstfield, ' ', secondfield, ' ', thirdfield, ' ', fourthfield) regexp 'value2'";
$qb->andhaving($queryHaving);