python - python中的字符范围

Question

有没有办法跨越字符？像这样的。

for c in xrange( 'a', 'z' ):
    print c

希望大家帮忙

Answer 1

这是自定义生成器的一大用途:

Python 2:

def char_range(c1, c2):
    """Generates the characters from `c1` to `c2`, inclusive."""
    for c in xrange(ord(c1), ord(c2)+1):
        yield chr(c)

然后:

for c in char_range('a', 'z'):
    print c

---

Python 3:

def char_range(c1, c2):
    """Generates the characters from `c1` to `c2`, inclusive."""
    for c in range(ord(c1), ord(c2)+1):
        yield chr(c)

然后:

for c in char_range('a', 'z'):
    print(c)