字串分割

Groovy - split() - Tutorialspoint java - Grails: Splitting a string that contains a pipe - Stack Overflow

"abc,def".split(",")// 如果使用 Pipe（|） 進行分割："abc|def".split("\\|")

Java String Split Newline - Grails Cookbook Groovy Goodness: Working with Lines in Strings - Messages from mrhaki

方法一、使用 eachLine 進行遍歷：

def multiline = '''\Groovy is closely related to Java,so it is quite easy to make a transition.'''multiline.eachLine {    if (it =~ /Groovy/) {        println it  // Output: Groovy is closely related to Java,    }}

方法二、先分割，後遍歷：

def multiline = '''\Groovy is closely related to Java,so it is quite easy to make a transition.'''def lines = multiline.split("\\r?\\n");for (String line : lines) {    println line}

使用 ==~ 運算子：

assert "2009" ==~ /\d+/String regex = /^somedata(:somedata)*$/assert "somedata" ==~ regex

def mphone = "1+555-555-5555"println mphone.replace(/5/, "3")// 1+333-333-3333println mphone.replaceFirst(/5/, "3")// 1+355-555-5555

據我們所知，函式 printf 只能為字串追加空格，以使其達到某個長度。

在 Groovy 中，可以使用 padLeft() 或者 padRight() 方法：

println "123123".padLeft(10, "#") // ####123123

「Apache Groovy」- 常用列表（List）操作

Simple Groovy replace using regex - Stack Overflow java - How to check if a String matches a pattern in Groovy - Stack Overflow Pad a String with Zeros or Spaces in Java | Baeldung How can I pad a String in Java? - Stack Overflow