0x01：题目
| 题目 | 题目地址链接 |
|---|---|
| Regex | http://www.wechall.net/challenge/training/regex/index.php |
0x02：WR
| 提示 1 | 提示2 | 提示3 | 解题步骤 |
|---|---|---|---|
| Your objective in this challenge is to learn the regex syntax. Regular Expressions are a powerful tool in your way to master programming, so you should be able to solve this challenge, at least！ | The solution to every task is always the shortest regular expression pattern possible.Also note that you have to submit delimiters in the patterns too. Example pattern: /joe/i. The delimiter has to be / | Your first lesson is easy: submit the regular expression the matches an empty string, and only an empty string. | ①"正斜杠"为分隔符—>②“尖叫号”开头标志—>③“不填内容“”为空----④“美元符号”为结束标志---->⑤/为分隔符，所以得出答案：/^$/ |
0x03：passwd/flag
提交后，即可过1级关！！！
