最简单的方案: {代码...} 安装完后最好更新一下: {代码...} 下面是老方案,可以不看了.... Step 1: The recommended path, not needed. {代码...} Step 2: install {代码...} Step 3: Add execute permissions. {代码...} Step 4: This step is not necessary. If needed, you can use this script to update Composer...