Erstellen Sie „composer.json'.

PS D:\code\test3> composer init
  Welcome to the Composer config generator
This command will guide you through creating your composer.json config.
Package name (<vendor>/<name>) [kelle/test3]: my/ctest
Description []:
Author [, n to skip]: dragonfly429 <dragonfly429@foxmail.com>
Minimum Stability []:
Package Type (e.g. library, project, metapackage, composer-plugin) []:
License []:
Define your dependencies.
Would you like to define your dependencies (require) interactively [yes]?
Search for a package:
Would you like to define your dev dependencies (require-dev) interactively [yes]?
Search for a package:
{
    "name": "my/ctest",
    "authors": [
        {
            "name": "dragonfly429",
            "email": "dragonfly429@foxmail.com"
        }
    ],
    "require": {}
}
Do you confirm generation [yes]?

--name: 包的名称。
--description: 包的描述。
--author: 包的作者。
--homepage: 包的主页。
--require: 需要依赖的其它包，必须要有一个版本约束。并且应该遵循  foo/bar:1.0.0  这样的格式。
--require-dev: 开发版的依赖包，内容格式与 --require 相同。
--stability (-s):  minimum-stability  字段的值。