计算公式验证

"use strict"
    const count = () => {
      const rpa = 14
      var reg = /^\d+(\.*\d{0,2})([+*/-]\d+(\.*\d{0,2}))+$/;
      // const num = '15*0.33/1.3'
      const num = `${rpa}*0.33/1.3`
      console.log(reg.test(num))
      if (reg.test(num)) {
        console.log('正确')
      } else {
        console.log('非正确')
      }
      const val = eval(num)
      console.log(val)
    }