Find all Chinese text in a string using Python and Regex

參考網址

https://stackoverflow.com/questions/2718196/find-all-chinese-text-in-a-string-using-python-and-regex

python的字串都是unicode

而全部中文的範圍在0x4e00 ~ 0x9fff之間

所以一個字串你想要取其中的中文可以這樣寫

def get_chinese(self, text):
    result = re.findall(r'[\u4e00-\u9fff]+', text)
    output = "".join(result)
    return output

補充

這一個字串你想寫入cp950編碼的檔案

但有一些字不符合該怎麼做?

with open("cp950.txt", mode="w", encoding="cp950") as f:
    f.write(text)

如果都不處理的話你會得到

UnicodeEncodeError: 'cp950' codec can't encode character '\uff6d' in position 98: illegal multibyte sequence

其實只要像下面這樣做就可以了

encode_text = text.encode("cp950", "ignore")
decode_text = encode_text.decode("cp950", "ignore")
with open("cp950.txt", mode="w", encoding="cp950") as f:
    f.write(decode_text)