题解 | #阶乘#
阶乘
https://www.nowcoder.com/practice/39fcf876fab34fe8afc298de10a1e112
function _factorial(number) {
// 补全代码
for(var i = number;i--;i>=0){
return number*i
for(var j = number-i;j--;j>=0){
return number*i*j
}
}
}
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