Groovy while循环未正确执行 [英] Groovy while loop not executed correctly

问题描述

我遵循了Groovy中的简单while循环代码-

I've following simple while loop code in groovy -

def count = 1
while(count <= 5) {
    println "$count"
    sleep(5000)
    println "Sleeping for 5 seconds"
    count++
}

这表示在第二次未运行Sleeping for 5 seconds时，循环仅执行了两次.实际上使用此代码，而代码块预计将执行5次.有人可以帮助理解为什么会有这种奇怪的行为吗?

Which indicates that loop is executed only twice still second time Sleeping for 5 seconds is not run. Actually with this code, while block is expected to be executed 5 times. Can someone help to understand why such a weird behaviour?

运行此代码时，输​​出如下-

When this code is run, output is following -

1
Sleeping for 5 seconds
2

推荐答案

这很好:

~ $ cat doit.groovy 
def count = 1
while(count <= 5) {
    println "$count"
    sleep(5000)
    println "Sleeping for 5 seconds"
    count++
}
~ $ groovy doit
1
Sleeping for 5 seconds
2
Sleeping for 5 seconds
3
Sleeping for 5 seconds
4
Sleeping for 5 seconds
5
Sleeping for 5 seconds

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