我在超链接里设置这段代码结果和你一样,我觉得是这样,首先他会吧里面涉及的公式都先执行保存到缓存里,比如你这里的uuid公式,这样每次循环的话他其实都是同一个值,你可以用js里的uuid去实现
function uuid() {
var s = [];
var hexDigits = "0123456789abcdef";
for (var i = 0; i < 36; i++) {
s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
}
s[14] = "4"; // bits 12-15 of the time_hi_and_version field to 0010
s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1); // bits 6-7 of the clock_seq_hi_and_reserved to 01
s[8] = s[13] = s[18] = s[23] = "-";
var uuid = s.join("");
return uuid;
}
var arr_uuid = [];
for (var i = 1; i < 5; i++) {
arr_uuid.push(uuid());
}
return arr_uuid;