for比while快吗？
在学time模块1、用while时
import time as t
class Thirdtimer():
def __init__(self,func,times = 100000):
self.default_timer = t.perf_counter
self.prompt = "未开始计时！"
self.lasted = 0.0
self.func = func
self.times = times
def __str__(self):
return self.prompt
__repr__ = __str__
#多次计时
def __add__(self,other):
result = self.lasted + other.lasted
prompt = "总共运行了 %0.2f 秒" % result
return prompt
#启动计时器
def timing(self):
self.begin = self.default_timer()
while self.times > 0:
self.times -= 1
self.func()
self.end = self.default_timer()
self.lasted = self.end - self.begin
self.prompt = "总共运行了 %0.2f 秒" % self.lasted
self.begin = 0
self.end = 0
#设置默认计时器
def set_timer(self,timer):
if timer == 'process_timer':
self.default_timer = t.process_time
elif timer == 'perf_counter':
self.default_timer = t.perf_counter
else:
print('输入无效，请输入perf_counter或process_timer')
def test():
text = "I love Fishc.com"
char = 'o'
if char in text:
pass
2、用for时
import time as t
class Thirdtimer():
def __init__(self,func,times = 100000):
self.default_timer = t.perf_counter
self.prompt = "未开始计时！"
self.lasted = 0.0
self.func = func
self.times = times
def __str__(self):
return self.prompt
__repr__ = __str__
#多次计时
def __add__(self,other):
result = self.lasted + other.lasted
prompt = "总共运行了 %0.2f 秒" % result
return prompt
#启动计时器
def timing(self):
self.begin = self.default_timer()
for i in range(self.times):
self.func()
self.end = self.default_timer()
self.lasted = self.end - self.begin
self.prompt = "总共运行了 %0.2f 秒" % self.lasted
self.begin = 0
self.end = 0
#设置默认计时器
def set_timer(self,timer):
if timer == 'process_timer':
self.default_timer = t.process_time
elif timer == 'perf_counter':
self.default_timer = t.perf_counter
else:
print('输入无效，请输入perf_counter或process_timer')
def test():
text = "I love Fishc.com"
char = 'o'
if char in text:
pass
idle中，31.39是while循环，13.79是for循环，这是不是说明for比while快，因为while多了判断吗？哈哈哈，吹吹水，如果有大佬懂原理跟我说一声
>>> t1 = Thirdtimer(test,100000000)
>>> t1.timing()
>>> t1
总共运行了 31.39 秒
>>>
===================== RESTART: C:\Users\86181\Desktop\44.py ====================
>>> t1 = Thirdtimer(test,100000000)
>>> t1.timing()
>>> t1
总共运行了 13.79 秒
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