在Groovy中循环浏览地图? [英] Loop through Map in Groovy?

问题描述

我正在Groovy中尝试执行一个非常简单的任务，但似乎无法使其正常工作.我只是想在groovy中遍历一个地图对象并打印出键和值，但是此代码不起作用.

I have a very simple task I am trying to do in Groovy but cannot seem to get it to work. I am just trying to loop through a map object in groovy and print out the key and value but this code does not work.

// A simple map
def map = [
        iPhone : 'iWebOS',
        Android: '2.3.3',
        Nokia  : 'Symbian',
        Windows: 'WM8'
]

// Print the values
for (s in map) {
    println s + ": " + map[s]
}

我正在尝试使输出看起来像这样:

I am trying to get the output to look like this:

iPhone: iWebOS
Android: 2.3.3
Nokia: Symbian
Windows: WM8

有人可以详细说明如何做吗?

Could someone please elaborate on how to do this??

推荐答案

使用闭包非常简单:

def map = [
           'iPhone':'iWebOS',
           'Android':'2.3.3',
           'Nokia':'Symbian',
           'Windows':'WM8'
           ]

map.each{ k, v -> println "${k}:${v}" }

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