正则表达式在数组中使用小数和数字的混合 [英] Regex using mix of decimals and numbers in an array

问题描述

正在努力寻找一种方法来乘以下面数组中的数字

Struggling to find a way to multiply the numbers in the below array

[120.98 7, 151.99 8, 141.39 4, 137.71 7, 121.27 6, 187.29 11] 

尝试使用split按空间拆分它们，然后将它们相乘，但是遇到问题，有什么想法吗?

Trying to split them by space using split and multiply them however facing issues, any ideas ?

要求将两个数字乘以逗号.

Ask is to multiply the two numbers before comma.

推荐答案

如果您的数组如您所展示的那样站立，那就是一个问题.但是，如果您首先以String格式设置它，这是一个解决方案:

It's a problem if your array stands as you show it. But if you set it first in String format, here is a solution :

myArray = "[120.98 7, 151.99 8, 141.39 4, 137.71 7, 121.27 6, 187.29 11]"
myStr = myArray[2..-1]  // to get rid of brackets
myStr = myStr[0..-2]
myStr = myStr.tokenize('[,]') // for parsing
println myStr

myStr.each{
    //println it
    first = it.split()[0].toDouble()
    second = it.split()[1].toDouble()

    println "$first * $second = " + first*second
}

这可能不是最好或最干净的方法，但它符合您的要求 结果如下:

It's probably not the best or cleanest way, but it fits your requirements here's the result:

[20.98 7,  151.99 8,  141.39 4,  137.71 7,  121.27 6,  187.29 11]
20.98 * 7.0 = 146.86
151.99 * 8.0 = 1215.92
141.39 * 4.0 = 565.56
137.71 * 7.0 = 963.97
121.27 * 6.0 = 727.62
187.29 * 11.0 = 2060.19

亚历克斯

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