python实现微秒级等待问题(windows)

import time


def microsecond_sleep(sleep_time):
    """微秒等待

    :param sleep_time: int, 微秒
    :return:
    """

    end_time = time.perf_counter() + (sleep_time - 0.8) / 1e6  # 0.8是时间补偿，需要根据自己PC的性能去实测
    while time.perf_counter() < end_time:
        pass


start = time.perf_counter()
microsecond_sleep(10)  # 等待10微秒
end = time.perf_counter()
print(start)
print(end)
print("等待时间:", (end-start) * 1e6, "微秒")

import time    # 导入time模块
 
def delayMicrosecond(t):    # 微秒级延时函数
    start,end=0,0           # 声明变量
    start=time.time()       # 记录开始时间
    t=(t-3)/1000000     # 将输入t的单位转换为秒，-3是时间补偿
    while end-start<t:  # 循环至时间差值大于或等于设定值时
        end=time.time()     # 记录结束时间

a=time.time()   # 记录延时函数开始执行时的时间
delayMicrosecond(10)	#延时 35 微秒
b=time.time()   # 记录延时函数结束时的时间
print((b))
print((a))

print((b-a)*1000000)

import time    # 导入time模块

def procedure():
    time.sleep(2.5)

# measure process time
t0 = time.process_time()
procedure()
print (time.process_time() - t0, "seconds process time")

# measure wall time
t0 = time.time()
procedure()
print (time.time() - t0, "seconds wall time")