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如何在npm中查看源的开发分支？

在当今快速发展的技术领域，版本控制工具如Git和其衍生产品GitLab、GitHub等，已经成为团队协作和项目管理的重要组成部分。而npm，作为JavaScript生态系统中最常用的包管理器，也离不开版本控制。那么，如何在npm中查看源的开发分支呢？本文将为您详细解答。

一、了解npm仓库结构

首先，我们需要了解npm仓库的基本结构。npm仓库中的每个项目都包含一个.npm文件夹，其中存储了项目的各种信息，包括版本、依赖、文件等。在.npm文件夹中，有一个名为package.json的文件，它包含了项目的版本信息。

二、查看源的开发分支

使用npm view命令

使用npm view命令可以查看项目的版本信息，包括稳定版、测试版（即开发分支）等。以下是一个查看源的开发分支的示例：

npm view <包名> versions

例如，查看express包的开发分支：

npm view express versions

执行上述命令后，您会看到类似以下结果：

'5.0.0',

'5.0.1',

'5.0.2',

'5.0.3',

'5.0.4',

'5.0.5',

'5.0.6',

'5.0.7',

'5.0.8',

'5.0.9',

'5.0.10',

'5.0.11',

'5.0.12',

'5.0.13',

'5.0.14',

'5.0.15',

'5.0.16',

'5.0.17',

'5.0.18',

'5.0.19',

'5.0.20',

'5.0.21',

'5.0.22',

'5.0.23',

'5.0.24',

'5.0.25',

'5.0.26',

'5.0.27',

'5.0.28',

'5.0.29',

'5.0.30',

'5.0.31',

'5.0.32',

'5.0.33',

'5.0.34',

'5.0.35',

'5.0.36',

'5.0.37',

'5.0.38',

'5.0.39',

'5.0.40',

'5.0.41',

'5.0.42',

'5.0.43',

'5.0.44',

'5.0.45',

'5.0.46',

'5.0.47',

'5.0.48',

'5.0.49',

'5.0.50',

'5.0.51',

'5.0.52',

'5.0.53',

'5.0.54',

'5.0.55',

'5.0.56',

'5.0.57',

'5.0.58',

'5.0.59',

'5.0.60',

'5.0.61',

'5.0.62',

'5.0.63',

'5.0.64',

'5.0.65',

'5.0.66',

'5.0.67',

'5.0.68',

'5.0.69',

'5.0.70',

'5.0.71',

'5.0.72',

'5.0.73',

'5.0.74',

'5.0.75',

'5.0.76',

'5.0.77',

'5.0.78',

'5.0.79',

'5.0.80',

'5.0.81',

'5.0.82',

'5.0.83',

'5.0.84',

'5.0.85',

'5.0.86',

'5.0.87',

'5.0.88',

'5.0.89',

'5.0.90',

'5.0.91',

'5.0.92',

'5.0.93',

'5.0.94',

'5.0.95',

'5.0.96',

'5.0.97',

'5.0.98',

'5.0.99',

'5.0.100',

'5.0.101',

'5.0.102',

'5.0.103',

'5.0.104',

'5.0.105',

'5.0.106',

'5.0.107',

'5.0.108',

'5.0.109',

'5.0.110',

'5.0.111',

'5.0.112',

'5.0.113',

'5.0.114',

'5.0.115',

'5.0.116',

'5.0.117',

'5.0.118',

'5.0.119',

'5.0.120',

'5.0.121',

'5.0.122',

'5.0.123',

'5.0.124',

'5.0.125',

'5.0.126',

'5.0.127',

'5.0.128',

'5.0.129',

'5.0.130',

'5.0.131',

'5.0.132',

'5.0.133',

'5.0.134',

'5.0.135',

'5.0.136',

'5.0.137',

'5.0.138',

'5.0.139',

'5.0.140',

'5.0.141',

'5.0.142',

'5.0.143',

'5.0.144',

'5.0.145',

'5.0.146',

'5.0.147',

'5.0.148',

'5.0.149',

'5.0.150',

'5.0.151',

'5.0.152',

'5.0.153',

'5.0.154',

'5.0.155',

'5.0.156',

'5.0.157',

'5.0.158',

'5.0.159',

'5.0.160',

'5.0.161',

'5.0.162',

'5.0.163',

'5.0.164',

'5.0.165',

'5.0.166',

'5.0.167',

'5.0.168',

'5.0.169',

'5.0.170',

'5.0.171',

'5.0.172',

'5.0.173',

'5.0.174',

'5.0.175',

'5.0.176',

'5.0.177',

'5.0.178',

'5.0.179',

'5.0.180',

'5.0.181',

'5.0.182',

'5.0.183',

'5.0.184',

'5.0.185',

'5.0.186',

'5.0.187',

'5.0.188',

'5.0.189',

'5.0.190',

'5.0.191',

'5.0.192',

'5.0.193',

'5.0.194',

'5.0.195',

'5.0.196',

'5.0.197',

'5.0.198',

'5.0.199',

'5.0.200',

'5.0.201',

'5.0.202',

'5.0.203',

'5.0.204',

'5.0.205',

'5.0.206',

'5.0.207',

'5.0.208',

'5.0.209',

'5.0.210',

'5.0.211',

'5.0.212',

'5.0.213',

'5.0.214',

'5.0.215',

'5.0.216',

'5.0.217',

'5.0.218',

'5.0.219',

'5.0.220',

'5.0.221',

'5.0.222',

'5.0.223',

'5.0.224',

'5.0.225',

'5.0.226',

'5.0.227',

'5.0.228',

'5.0.229',

'5.0.230',

'5.0.231',

'5.0.232',

'5.0.233',

'5.0.234',

'5.0.235',

'5.0.236',

'5.0.237',

'5.0.238',

'5.0.239',

'5.0.240',

'5.0.241',

'5.0.242',

'5.0.243',

'5.0.244',

'5.0.245',

'5.0.246',

'5.0.247',

'5.0.248',

'5.0.249',

'5.0.250',

'5.0.251',

'5.0.252',

'5.0.253',

'5.0.254',

'5.0.255',

'5.0.256',

'5.0.257',

'5.0.258',

'5.0.259',

'5.0.260',

'5.0.261',

'5.0.262',

'5.0.263',

'5.0.264',

'5.0.265',

'5.0.266',

'5.0.267',

'5.0.268',

'5.0.269',

'5.0.270',

'5.0.271',

'5.0.272',

'5.0.273',

'5.0.274',

'5.0.275',

'5.0.276',

'5.0.277',

'5.0.278',

'5.0.279',

'5.0.280',

'5.0.281',

'5.0.282',

'5.0.283',

'5.0.284',

'5.0.285',

'5.0.286',

'5.0.287',

'5.0.288',

'5.0.289',

'5.0.290',

'5.0.291',

'5.0.292',

'5.0.293',

'5.0.294',

'5.0.295',

'5.0.296',

'5.0.297',

'5.0.298',

'5.0.299',

'5.0.300',

'5.0.301',

'5.0.302',

'5.0.303',

'5.0.304',

'5.0.305',

'5.0.306',

'5.0.307',

'5.0.308',

'5.0.309',

'5.0.310',

'5.0.311',

'5.0.312',

'5.0.313',

'5.0.314',

'5.0.315',

'5.0.316',

'5.0.317',

'5.0.318',

'5.0.319',

'5.0.320',

'5.0.321',

'5.0.322',

'5.0.323',

'5.0.324',

'5.0.325',

'5.0.326',

'5.0.327',

'5.0.328',

'5.0.329',

'5.0.330',

'5.0.331',

'5.0.332',

'5.0.333',

'