HTML 中

onkeyup="stripscript(this)";

function stripscript(obj) {
var s = $(obj).val();
var pattern = new RegExp("[`~@#$^&|\\<>/~@#￥&]")
var rs = "";
for (var i = 0; i < s.length; i++) {
rs = rs + s.substr(i, 1).replace(pattern, '');
}
$(obj).val(rs);
}