python - 我想从给定字典(python)中的字符串中删除\u00a9 、\u201d 和类似的字符。

Question

d = {
    "key": "Impress the playing crowd with these classic "
           "Playing Cards \u00a9 Personalized Coasters.These beautiful"
           " coasters are made from glass, and measure approximately 4\u201d x 4\u201d (inches)"
           ".Great to look at, and lovely to the touch.There are 4 coasters in a set.We have "
           "created this exclusive design for all card lovers.Each coaster is a different suit, "
           "with the underneath.Make your next Bridge, or Teen Patti session uber-personal!"
           "Will look great on the bar, or any tabletop.Gift Designed for: Couples, Him, "
           "HerOccasion:Diwali, Bridge, Anniversary, Birthday"}

我已经尝试了它的替换功能，但没有用。

s = d[key].replace('\u00a9','')

Answer 1

如果要从字符串中删除所有 Unicode 字符，可以使用 string.encode("ascii", "ignore")。

它尝试将字符串编码为 ASCII，第二个参数 ignore 告诉它忽略无法转换的字符(所有 Unicode 字符)，而不是像通常那样抛出异常没有第二个参数，因此它返回一个仅包含可以成功转换的字符的字符串，从而删除所有 Unicode 字符。

示例用法:

unicodeString = "Héllò StàckOvèrflow"
print(unicodeString.encode("ascii", "ignore")) # prints 'Hll StckOvrflow'

更多信息:str.encode()和 Unicode在 Python 文档中。