代碼1：function factorialize1(num) {    if(num === 0){        return 1;    }    return num * factorialize1(num-1)    ;}console.time('text1');factorialize1(100);console.timeEnd('text1');//需要回車后才能顯示結(jié)果，這樣測(cè)試時(shí)間就不準(zhǔn)確，而且相差很多代碼2：function factorialize2(n, total = 1) {    if (n === 1) return total;    return factorialize2(n - 1, n * total);}console.time('text2');factorialize2(100);console.timeEnd('text2');