f53ef079be
修正不正确的缩进，保持与原版的代码逻辑一致。原版代码见https://github.com/dabeaz/python-cookbook/blob/master/src/2/combining_and_concatenating_strings/example.py
59 lines
1.1 KiB
Python
59 lines
1.1 KiB
Python
#!/usr/bin/env python
|
|
# -*- encoding: utf-8 -*-
|
|
"""
|
|
Topic: 字符串合并
|
|
Desc :
|
|
"""
|
|
|
|
|
|
def combine(source, maxsize):
|
|
parts = []
|
|
size = 0
|
|
for part in source:
|
|
parts.append(part)
|
|
size += len(part)
|
|
if size > maxsize:
|
|
yield ''.join(parts)
|
|
parts = []
|
|
size = 0
|
|
yield ''.join(parts)
|
|
|
|
|
|
def sample():
|
|
yield 'Is'
|
|
yield 'Chicago'
|
|
yield 'Not'
|
|
yield 'Chicago?'
|
|
|
|
|
|
def join_str():
|
|
parts = ['Is', 'Chicago', 'Not', 'Chicago?']
|
|
print(' '.join(parts))
|
|
print(','.join(parts))
|
|
print(''.join(parts))
|
|
|
|
# 使用+
|
|
a = 'Is Chicago'
|
|
b = 'Not Chicago?'
|
|
c = 'ccc'
|
|
print(a + ' ' + b)
|
|
|
|
data = ['ACME', 50, 91.1]
|
|
print(','.join(str(d) for d in data))
|
|
|
|
|
|
print(a + ':' + b + ':' + c) # Ugly
|
|
print(':'.join([a, b, c])) # Still ugly
|
|
print(a, b, c, sep=':') # Better
|
|
|
|
# 混合方案
|
|
# with open('filename', 'w') as f:
|
|
# for part in combine(sample(), 32768):
|
|
# f.write(part)
|
|
for part in combine(sample(), 32768):
|
|
print(part)
|
|
|
|
if __name__ == '__main__':
|
|
join_str()
|
|
|