小编Joh*_*son的帖子

给定这两个字符串：

let query = "select color, year from car where color = blue and year = 2002";

或者

let query = "select color, year from car";

我创建了以下内容RegExp来String.prototype.match提取列、表名和 where 子句（可选）

var results = query.match(/select (.*) from (.*) where (.*)/);

对于第一个查询，结果是我所期望的：

[ 
  'select color, year from car where color = blue and year = 2002',
  'color, year',
  'car',
  'color = blue and year = 2002',
  index: 0,
  input: 'select color, year from car where color = blue and …