# print(time.gmtime())
#
# print(time.localtime())
# print(time.ctime())
# t=time.localtime()
# print(t)
# print(time.mktime(t))
# st=time.strftime('%Y-%m-%d %H:%M:%S',t)
# print(st)
# print(time.strptime(st,'%Y-%m-%d %H:%M:%S'))
######################################################################
#import time
#print(time.time())
#time.time() 当前系统时间
# first_time=time.time()
# a=0
# for i in range(10000000):
# a+=1
# second_time=time.time()
# time.sleep(10)
# print(a)
# last_time=time.time()
# print(second_time-first_time)
# print(last_time-first_time)
# a1=time.perf_counter()
# a2=time.perf_counter()
# print(a1,a2)
# a1=time.perf_counter()
# b1=time.time()
# a=0
# for i in range(10000000):
# a+=1
# print(a)
# a2=time.perf_counter()
# b2=time.time()
# print(a2-a1)
# print(b2-b1)
########################################################################
################### 进度条 ###################
# import time
# scale= 50
# print("--------------程序开始执行")
# start_time=time.perf_counter()
# for i in range(scale+1):
# a='*'*i
# b='.'*(scale-i)
# c=(i/scale)*100
# dur=time.perf_counter()-start_time
# print('\r{:^3.0f}%[{}->{}]{:2f}s'.format(c,a,b,dur),end='') #\r 表示将光标的位置回退到本行的开头位置
# time.sleep(0.2)
# print('\n -------------程序实行结束')
########################################################################
#import random
# print('a=',random.random()) #产生随机数
# print('a=',random.random())
# print('b=',random.random())
##seed()初始化随机数种子，默认值为当前系统时间 设置seed()后，所有随机数都被固定。
##所固定的随机数按当次运行程序顺序依次不变，即可以理解为当前程序出现多个随机数时会生成元组
# random.seed()
# print('b=',random.random())
# print('b=',random.random())
# random.seed('abse')
# c=random.random()
# print('c=',c)
# c=random.random()
# print('c=',c)
# c=random.random()
# print('c=',c)
# # c= 0.0035945744488673492
# # c= 0.2230068475816126
# # c= 0.0351293388447278
# a=random.randint(4,5) #randint(a,b)随机生成[a,b]之间的任意整数一个，包含左右边界
# print(a)
# b=random.randrange(1,10) #randrange(start,stop[,step]) step默认为1
# # print(b)
# # print(random.randrange(1,10,2))
# print(random.uniform(1,3)) #在1~3之间随机产生一个小数
###############################################################################################
# import random
# ls=['剪刀','石头','布']
# a=random.choice(ls) #从列表中随机选择元素
# print(a)
# while(1):
# b=eval(input('请输入您的选择：1-剪刀，2-石头，3-布 ==>'))
# if b==1:
# b='剪刀'
# break
# elif b==2:
# b='石头'
# break
# elif b==3:
# b='布'
# break
# else:
# print('输入错误，请重新选择')
# print(b)
# if a=='剪刀' and b=='布':
# c='计算机赢了'
# elif a=='剪刀' and b=='石头':
# c='你赢了'
# elif a=='石头' and b=='布':
# c = '你赢了'
# elif a=='石头' and b=='剪刀':
# c = '计算机赢了'
# elif a=='布' and b=='剪刀':
# c = '你赢了'
# elif a=='布' and b=='石头':
# c = '计算机赢了'
# else:
# c = "平局"
#
# print('计算机选择 \'{}\'，您选择 \'{}\' , 结果是 \'{} \''.format(a,b,c))
##########################################################################
# import random
# ls=['剪刀','石头','布']
# random.shuffle(ls) #suffle随机打乱列表，不返回值
# print(ls)
# print(random.sample(ls,1)) #sample(pop,k) 从pop列表中随机选取k个元素
# print(random.sample(ls,2))
############################################################################
# import turtle
# turtle.setup(400,400,200,200) #setup(width,height,startx,starty)
#turtle.forward(200)
#turtle.backward(100)
#turtle.right(45)
#turtle.left(30)
#turtle.setheading(75)
#turtle.setheading(120)
#turtle.goto(150,30)
#turtle.circle(30,360) #circle(半径，弧度)
#turtle.undo()
# turtle.speed(1) #速度范围1~10，参数越大，速度越快
# turtle.fd(200)
# turtle.done()
#############################################################################
# import turtle
# turtle.speed(1)
# for i in range(6):
# turtle.seth(i*60)
# turtle.fd(100)
#
# for i in range(5):
# turtle.seth(i*75)
# turtle.fd(100)
############################################################################
# import turtle
# # turtle.pensize(10)
# # turtle.fd(50)
# # turtle.pensize(1)
# # turtle.fd(50)
# #
# # turtle.color('red')
# # turtle.circle(30)
#
# turtle.begin_fill()
# turtle.color('green')
# turtle.circle(30)
# print(turtle.filling())
# turtle.end_fill()
# #turtle.clear()
# turtle.reset()
# turtle.hideturtle()
#
# turtle.done()
############################桃心#################################################
# import turtle
#
# turtle.setup()
# def Peach_heart():
# turtle.left(135)
# turtle.fd(100)
# turtle.right(180)
# turtle.circle(50,-180)
# turtle.left(90)
# turtle.circle(50,-180)
# turtle.right(180)
# turtle.fd(100)
# turtle.begin_fill()
# turtle.color('red')
# Peach_heart()
# turtle.end_fill()
#
# turtle.penup()
# turtle.goto(100,30)
# turtle.pendown()
# turtle.seth(0)
#
# turtle.begin_fill()
# turtle.color('pink')
# Peach_heart()
# turtle.end_fill()
#
# turtle.penup()
# turtle.goto(-100,30)
# turtle.pendown()
# turtle.seth(25)
#
# turtle.pensize(2)
# turtle.color('green')
# turtle.forward(350)
#turtle.done()
############################太极#######################################
import turtle as T
T.hideturtle()
T.setup()
T.begin_fill()
T.color('black')
T.circle(100,180)
T.circle(50,180)
T.circle(-50,180)
T.end_fill()
T.circle(-100,180)
T.penup()
T.goto(0,50)
T.pendown()
T.begin_fill()
T.color('black')
T.circle(10)
T.end_fill()
T.penup()
T.goto(0,150)
T.pendown()
T.begin_fill()
T.color('white')
T.circle(10)
T.end_fill()
T.done()
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