验证号码
function checkNumber() {
var inputNumber = document.getElementById(“numberInput”).value;
// 这里模拟数据库中的数据
var databaseNumbers = [“565252”, “123456”, “789012”];
if (databaseNumbers.includes(inputNumber)) {
document.getElementById(“result”).innerHTML = “MMB500”;
} else {
document.getElementById(“result”).innerHTML = “”;
}
}