我在Typescript中有以下数组:
this.days_in_month = [
[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
[31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31],
];
我想遍历它,并为每个值创建一个新的、包含该值长度的空数组,并将该数组