var patrn = /^\d+(\.\d+)?$/;
var result = true;
var num = 0.11; if (!patrn.exec(num)) {
alert("请输入正确的数字!");
result = false;
}
var patrn = /^\d+(\.\d+)?$/;
var result = true;
var num = 0.11; if (!patrn.exec(num)) {
alert("请输入正确的数字!");
result = false;
}