請問怎樣寫"拿走一部分string"的REGEX?

Question

請問怎樣寫REGEX可以拿走._SS40從下面取出 https://images-na.ssl-images-amazon.com/images/I/51e79yXDDlL.jpg<input /><span><img src="https://images-na.ssl-images-amazon.com/images/I/51e79yXDDlL._SS40_.jpg" /></span>

Answer 1

正则么，怎么用繁体字