在python中将长数字格式化为字符串

我认为没有内置功能可以做到这一点。您必须自己滚动，例如：

def human_format(num):    magnitude = 0    while abs(num) >= 1000:        magnitude += 1        num /= 1000.0    # add more suffixes if you need them    return '%.2f%s' % (num, ['', 'K', 'M', 'G', 'T', 'P'][magnitude])print('the answer is %s' % human_format(7436313))  # prints 'the answer is 7.44M'