Compare Version Numbers

本文详细解释了如何比较两个版本号,并提供了相应的代码实现。通过将版本号转换为整数进行比较,确保了准确性和效率。

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Compare two version numbers version1 and version2.
If version1 > version2 return 1, if version1 < version2 return -1, otherwise return 0.

You may assume that the version strings are non-empty and contain only digits and the . character.
The . character does not represent a decimal point and is used to separate number sequences.
For instance, 2.5 is not "two and a half" or "half way to version three", it is the fifth second-level revision of the second first-level revision.

Here is an example of version numbers ordering:

0.1 < 1.1 < 1.2 < 13.37
#include<iostream>
#include<string>
#include<vector>
using namespace std;
//转化为整数再比较
int compareVersion(string version1, string version2) {
	
	int value1 = 0,value2 = 0;
	int index1=0,  index2 = 0;
	while (index1<version1.size()||index2<version2.size())
	{
		value1 =0;
		value2 =0;
		while (index1<version1.size())
		{
			if (version1[index1]=='.')
			{
				index1++;
				break;
			}
			value1 = 10*value1+version1[index1]-'0';
			index1++;
		}
		while (index2<version2.size())
		{
			if (version2[index2]=='.')
			{
				index2++;
				break;
			}
			value2 = 10*value2+version2[index2]-'0';
			index2++;
		}
		if (value1>value2)
			return 1;
		if (value2>value1)
			return -1;
	}
	return 0;
}


 

 

资源下载链接为: https://pan.quark.cn/s/22ca96b7bd39 在当今的软件开发领域,自动化构建与发布是提升开发效率和项目质量的关键环节。Jenkins Pipeline作为一种强大的自动化工具,能够有效助力Java项目的快速构建、测试及部署。本文将详细介绍如何利用Jenkins Pipeline实现Java项目的自动化构建与发布。 Jenkins Pipeline简介 Jenkins Pipeline是运行在Jenkins上的一套工作流框架,它将原本分散在单个或多个节点上独立运行的任务串联起来,实现复杂流程的编排与可视化。它是Jenkins 2.X的核心特性之一,推动了Jenkins从持续集成(CI)向持续交付(CD)及DevOps的转变。 创建Pipeline项目 要使用Jenkins Pipeline自动化构建发布Java项目,首先需要创建Pipeline项目。具体步骤如下: 登录Jenkins,点击“新建项”,选择“Pipeline”。 输入项目名称和描述,点击“确定”。 在Pipeline脚本中定义项目字典、发版脚本和预发布脚本。 编写Pipeline脚本 Pipeline脚本是Jenkins Pipeline的核心,用于定义自动化构建和发布的流程。以下是一个简单的Pipeline脚本示例: 在上述脚本中,定义了四个阶段:Checkout、Build、Push package和Deploy/Rollback。每个阶段都可以根据实际需求进行配置和调整。 通过Jenkins Pipeline自动化构建发布Java项目,可以显著提升开发效率和项目质量。借助Pipeline,我们能够轻松实现自动化构建、测试和部署,从而提高项目的整体质量和可靠性。
### Goroutines and Channel Output Comparison In the context of concurrent programming using Go language, goroutines provide an efficient way to execute functions concurrently. By prefixing a function call with `go`, this operation runs asynchronously in a separate goroutine without blocking the main program flow[^1]. When comparing outputs related to channels (`ch1`), consider how data flows between different parts of a program through these communication primitives. Channels allow safe sharing of values across multiple goroutines. #### Example Demonstrating Concurrent Execution Using Goroutines Below demonstrates sending messages over channel `ch1`. One version uses direct synchronous calls while another employs asynchronous execution via goroutines: ```go package main import ( "fmt" ) func sendDirect(ch chan int) { for i := 0; i < 5; i++ { ch <- i * 2 // Send even numbers directly into ch1 synchronously } close(ch) } func sendAsync(ch chan int) { go func() { // Run as goroutine for i := 0; i < 5; i++ { ch <- i * 3 // Send multiples of three into ch1 asynchronously } close(ch) }() } func main() { fmt.Println("Synchronous:") directCh := make(chan int) sendDirect(directCh) for v := range directCh { fmt.Printf("%d ", v) } fmt.Println("\nAsynchronous:") asyncCh := make(chan int) sendAsync(asyncCh) for v := range asyncCh { fmt.Printf("%d ", v) } } ``` This code snippet shows two methods for populating `ch1`: one performs operations sequentially within the same thread, whereas the other leverages concurrency by launching tasks inside independent lightweight threads known as goroutines.
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