在以太坊开发时，需要在测试链Rinkeby环境，因此需要获取测试链中的以太币，可以通过以下3种方式获取。
How does this work?
This Ether faucet is running on the Rinkeby network. To prevent malicious actors from exhausting all available funds or accumulating enough Ether to mount long running spam attacks, requests are tied to common 3rd party social network accounts. Anyone having a Twitter, Google+ or Facebook account may request funds within the permitted limits.
1、To request funds via Twitter, make a tweet with your Ethereum address pasted into the contents (surrounding text doesn't matter).
Copy-paste the tweets URL into the above input box and fire away!
2、To request funds via Google Plus, publish a new public post with your Ethereum address embedded into the content (surrounding text doesn't matter).
Copy-paste the posts URL into the above input box and fire away!
3、To request funds via Facebook, publish a new public post with your Ethereum address embedded into the content (surrounding text doesn't matter).
Copy-paste the posts URL into the above input box and fire away!
这里介绍第一种，通过twitter方式获取：
推特发文时将红框里面的地址改为测试链中自己的钱包地址
复制推文链接到步骤2中的框中
注意事项：
我在用360极速浏览器时遇到不能获取以太币的情况，js脚本报错，换成google chrome即可！
