/[u2E80-u2FDFu3040-u318Fu31A0-u31BFu31F0-u31FFu3400-u4DB5u4E00-u9FFFuA960-uA97FuAC00-uD7FF].*/.exec("뭐해?‘라는 두 글자에")[0]
结果:
"뭐해?‘라는 두 글자에"
/[u2E80-u2FDFu3040-u318Fu31A0-u31BFu31F0-u31FFu3400-u4DB5u4E00-u9FFFuA960-uA97FuAC00-uD7FF].*/.exec("哈哈哈哈")[0]
结果:
"哈哈哈哈"
有更好的办法欢迎留言!!!