‘abcabce‘.replace(/abc/g,‘‘) "e" ‘abcabce$E$‘.replace(/$E$/g,‘‘) "abcabce$E$" ‘abcabce$$‘.replace(/$/g,‘‘) "abcabce$$" ‘abcabce$$‘.replace(/\$/g,‘‘) "abcabce" ‘abcabce$E$‘.replace(/\$E\$/g,‘‘) "abcabce" ‘abcabce$E$$E$‘.replace(/\$E\$/g,‘‘) "abcabce"
原文：https://www.cnblogs.com/rongyao/p/11273949.html