帮帮忙！请问在javascript中判断字符串中包含某一特定字符

[loveyxy]

[希偌]

var regu = "^(你要查的字符)"
var re = new RegExp(regu);
if (document.inputform.email.value.search(re) != -1) {
alert('查到了');
}
else
{alert('没查到！');}

[希偌]

var regu = "^(你要查的字符)"
var re = new RegExp(regu);
if (要查找的字符串.search(re) != -1) {
alert('查到了');
}
else
{alert('没查到！');}