/
^
(?<integer>
(?<n1>
(?<n1nz>[一二三四五六七八九壹贰叁肆伍陆柒捌玖])
|(?<n1wz>[〇零])
)
|(?<n2>
(?<h2nz>
(?<n2nz>(?<n2z1>(?&n1nz)[十拾])(?&n1nz))
|[十拾](?&n1nz)
)
|(?<h2wz>
(?<n2wz>(?&n2z1))
|[十拾]
)
)
|(?<n3>
(?<n3nz>(?<n3z2>(?<h1nz>(?&n1nz)|两)[百佰])((?&n2nz)|(?&n1wz)(?&n1nz)))
|(?<n3wz>(?&n3z2)(?&n2wz)?)
)
|(?<n4>
(?<n4nz>(?<n4z3>(?&h1nz)[千仟])((?&n3nz)|(?&n1wz)((?&n2nz)|(?&n1nz))))
|(?<n4wz>
(?&n4z3)(?&n3wz)?
|(?&n4z3)(?&n1wz)(?&n2wz)
)
)
|(?<n5_7>
(?<n5_7nz>
(?<n5_7z4>(?<h1_3nz>(?&h1nz)|(?&h2nz)|(?&n3nz))[万萬])((?&n4nz)|(?&n1wz)((?&n3nz)|(?&n2nz)|(?&n1nz)))
|(?<n6_7z5_7>(?<h2_3wz>(?&h2wz)|(?&n3wz))[万萬])((?&n1wz)((?&n4nz)|(?&n3nz)|(?&n2nz)|(?&n1nz)))
)
|(?<n5_7wz>
(?&n5_7z4)((?&n4wz)|(?&n1wz)((?&n3wz)|(?&n2wz)))?
|(?&n6_7z5_7)((?&n1wz)((?&n4wz)|(?&n3wz)|(?&n2wz)))?
)
)
|(?<n8>
(?<n8nz>
(?<n8z4>(?&n4nz)[万萬])((?&n4nz)|(?&n1wz)((?&n3nz)|(?&n2nz)|(?&n1nz)))
|(?<n8z5_7>(?&n4wz)[万萬])(?&n1wz)((?&n4nz)|(?&n3nz)|(?&n2nz)|(?&n1nz))