python从字符串中提取数字,使用正则表达式 使用正则表达式 importre D = re.findall(r"\d+\.?\d*",line)print(D) -7.2324610.89595.195340.0613837-7.1563110.815-7.2398310.90635.199940.001796920.09837570.08930440.4061630.436051['7.23246','10.8959','5.19534','0.0613837','7.15631','10.815','7.23983','10.9...
在Python 中,我们可以使用正则表达式来从字符串列表中提取数字。下面是一个例子: import re strings = ['123', '45.67', '8,9,10', '-42'] pattern = re.compile(r'\d+\.?\d*') for string in strings: match = re.match(pattern, string) if match: num = float(match.group(0)) print(num...