I want to remove all commas from a string using regular expressions, I want letters, periods and numbers to remain just commas
我想使用正则表达式从字符串中删除所有逗号，我希望字母，句点和数字保持逗号
2 个解决方案
#1
26
Why a regex?
什么是正则表达式？
mystring = mystring.replace(",", "")
is enough.
足够。
Of course, if you insist:
当然，如果你坚持：
mystring = re.sub(",", "", mystring)
but that's probably an order of magnitude slower.
但这可能要慢一个数量级。
#2
7
You don't need RE for that trivial operation. just use replace() on string:
您不需要RE进行那种微不足道的操作。只需对字符串使用replace（）：
a="123,asd,wer"
a.replace(",", "")
#1
26
Why a regex?
什么是正则表达式？
mystring = mystring.replace(",", "")
is enough.
足够。
Of course, if you insist:
当然，如果你坚持：
mystring = re.sub(",", "", mystring)
but that's probably an order of magnitude slower.
但这可能要慢一个数量级。
#2
7
You don't need RE for that trivial operation. just use replace() on string:
您不需要RE进行那种微不足道的操作。只需对字符串使用replace（）：
a="123,asd,wer"
a.replace(",", "")