智一面的面试题提供python的测试题
比较
import time
t1 = time.time()
s = ""
for i in range(1000000):
s += "哈哈"
t2 = time.time()
display("用时：" + str(t2-t1))
t3 = time.time()
l = []
for i in range(1000000):
l.append("哈哈")
m = "".join(l)
t4 = time.time()
display("用时：" + str(t4-t3))
结果如下：
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智一面的面试题提供python的测试题
http://www.gtalent.cn/exam/interview?token=9a01b62b6b2b716ae136d1860885b5aa