replace-string_demo

for change old ip in yarn.lock. [http://172.16.11.82:4873] to [https://npm.chinawyny.com]

1. replace-test options: -o 原始的字符串 -n 替换后的字符串 -p 完整的路径
2. replace-test without path it will retrieve yarn.lock in the current folder. If it doesn't find it you can type it yourself