Python字符串

Python字符串（列表元素拼接）

内容来自https://www.youtube.com/watch?v=e6ivlABOYRI

列表元素合并成字符串

两种方法的效率比较：

from timeit import default_timer as timer

my_list = ['a'] * 1000000
#print(my_list)

# bad
start = timer()
my_string = ''
for i in my_list:
    my_string += i
stop = timer()
print(stop-start)

# good
start = timer()
my_string = ''.join(my_list)
stop = timer()
print(stop - start)

运行时间

0.20153530000000003
0.008760299999999999