export function generateUUID() {
// 生成 UUID 的算法
var d = new Date().getTime();
if (window.performance && typeof window.performance.now === "function") {
d += performance.now(); // 使用性能 API 的当前时间来增加熵
}
var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
var r = (d + Math.random() * 16) % 16 | 0;
d = Math.floor(d / 16);
return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16);
});
return uuid;
}