摘要：//不使用缓冲区，用时100MS public static void main(String[] args) { Writer writer = null; try { Long startTime = System.currentTimeMillis(); writer = new FileWr 阅读全文

摘要：$headArr=['姓名','身高','','位置'];//列名 $data = [['aa',12,'b'],['bb',13,'c'],['dd',34,'e]]; //数据 function exportToExcel($fileName = '', $headArr = [], $data 阅读全文