today=new Date();
jran=today.getTime();
function rnd() {
ia=9301;
ic=49297;
im=233280;
jran = (jran*ia+ic) % im;
return jran/(im*1.0);
};
function rand(number) {
return Math.ceil(rnd()*number);
};
document.write("<center>");
for(i=1;i<=1;i++) {
myNum=(rand(3)); //改成你要隨機顯示的圖片數；
if(myNum == 1) document.write("<img src='https://cdn.discordapp.com/attachments/491696292414881802/681548506208796719/FB_IMG_1582558097264.jpg'>"); //圖片路徑，可用http://
if(myNum == 2) document.write("<img src='https://cdn.discordapp.com/attachments/612817863954399233/680401727576473630/4T8PIpCAfmnPTJa1zJro7q.png'>");
if(myNum == 3) document.write("<img src='images/jk_03.jpg'>");
else {
document.write();
}
};
document.write("</center>");