& lthtml & gt
& lthead & gt
& lttitle & gt在此插入標題& lt/title & gt;
& lt腳本語言= " javascript " & gt
函數aa() {
var m = 0;
var n = 0;
做{
var a = math . floor(math . random()* 9+1);
var b = math . floor(math . random()* 9+1);
var c = math . floor(math . random()* 9+1);
var str =字符串(a) +字符串(b) +字符串(c);
if (a == 8 || b == 8 || c == 8) {
m++;
flag = true
}否則{
flag = false
n++;
}
if (flag == true) {
V = confirm (str+"\ nWin \n"+"勝率"
+(math . floor((m/(m+n))* 100))+" %,"+"要繼續嗎?");
}
if (flag == false) {
V = confirm (str+"\ nLose \n"+"勝率"
+(math . floor((m/(m+n))* 100))+" %,"+"要繼續嗎?");
}
} while (v)
}
& lt/script & gt;
& lt/head & gt;
& ltbody bgcolor="pink " >
使用變量和函數,設計和模擬幸運數字機遊戲。設幸運數字為8,電腦每次會隨機產生三個1~9(包括1和9)的隨機數。當三個隨機數中有壹個是8時,妳將贏得壹次。要求使用函數計算勝率。
& ltbr/>;
& ltinput type = " button " name = " " onclick = " aa()" value = " lottery "/& gt;
& lt/body & gt;
& lt/html & gt;