SOURCE

var obj = {
    one1: '苹果',
    one2: '梨',
    one3: '香蕉',
}
var number = 100
var statistical = {
    apple: 0,
    pear: 0,
    banana: 0,
}
function suiji() {
    let num = Math.random()
    let a = ''
    if (num <= 0.1) {
        a = obj.one1
    } else if (num <= 0.5) {
        a = obj.one2
    } else {
        a = obj.one3
    }
    // console.log(a)
    return a;
}
function tongji() {
    for (let i = 0; i < number; i++) {
        (function (i) {
            setTimeout(function () {
                // console.log(i)
                console.log(suiji(), i + 1)
                if (suiji() == '苹果') {
                    statistical.apple++
                } else if (suiji() == '梨') {
                    statistical.pear++
                } else {
                    statistical.banana++
                }
                if (i + 1 == number) {
                    console.log(statistical)
                    return 
                }
            }, (i + 1) * 50);
        })(i)
    }
}
tongji()
// function sleep(delay) {
//     var start = (new Date()).getTime();
//     while((new Date()).getTime() - start < delay) {
//         continue;
//     }
// }
// sleep()