CodeReview01：减少临时变量定义

let name = "";

if (isXiaohong) {

name = "xiaohong";

}else {

name = "xiaoming";

}

这种写法可以写成下面这种

const name = assignName(isXiaohong);
function assignName() {
  if (isXiaohong) {
    return "xiaohong";
  } else {
    return "xiaoming";
  }
}