如何将字符串拆分为整数数组 [英] How to split string into array as integers

问题描述

鉴于这样的事情

@grid = "4x3".split("x")

当前结果是一个字符串数组"4","3"

The current result is an array of strings "4","3"

有什么捷径可以直接拆分成整数吗?

Is there any shortcut to split it directly to integers?

推荐答案

ruby-1.9.2-p136 :001 > left, right =  "4x3".split("x").map(&:to_i)
 => [4, 3] 
ruby-1.9.2-p136 :002 > left
 => 4 
ruby-1.9.2-p136 :003 > right
 => 3 

对结果数组调用 map 以转换为整数，并将每个值分别分配给左和右.

Call map on the resulting array to convert to integers, and assign each value to left and right, respectively.

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