app.py

import streamlit as st
from pykakasi import kakasi

def to_romaji(text):
    kakasi_instance = kakasi()
    result = kakasi_instance.convert(text)
    result_str = ""
    for item in result:
        result_str += item['hepburn'] + "  "
        # print("{}: kana '{}', hiragana '{}', romaji: '{}'".format(item['orig'], item['kana'], item['hira'], item['hepburn']))
    return result_str

st.title('日文转罗马音')
text = st.text_area('在这里输入日文:')

if text:
    romaji = to_romaji(text)
    st.write('罗马音:')
    st.write(romaji)