Python字符串中如何去除数字之间的逗号

>>> n = '123,456,789'
>>> n1 = n.replace(',','')
>>> print n1
123456789

import re
s = 'Today is Sunday, I bought $ 100,000.'
p = re.compile(r'\d,\d')
 
while 1:
    m = p.search(s)
    if m:
        mm = m.group()
        s = s.replace(mm,mm.replace(',',''))
    else:
        break
print s

s = "abc123,123。"
# 删除逗号
s = s.replace(',', '')
print(s)  # "abc123123。"

s = "   123abc   "
# 删除开头的空格
print(s.lstrip())  # "123 abc   "
# 删除结尾的空格
print(s.rstrip())  # "   123 abc"
# 删除开头和结尾的空格
print(s.strip())  # "123 abc"
# 删除字符串中所有的空格
print(s.replace(' ', ''))  # "123abc"

import re
s = "123,abc .?/&？》^_^dddA。"
# 把所有编码非\u0030-\u0039(数字)、\u0041-\u007a(英文字母)的字符替换为空字符串
rs = re.sub("([^\u0030-\u0039\u0041-\u007a])", '', s)
print(rs) # "123abcdddA"

import re
s = "我爱中国🇨🇳，I love China。"
# 把所有编码非\u4e00-\u9fa5(汉字)的字符替换为空字符串
rs = re.sub("([^\u4e00-\u9fa5])", '', s)
print(rs) # "我爱中国"