def _f4(self):
from random import randint as r # 直接导入randint函数,更名为r
from random import uniform as ru # 直接导入uniform函数,更名为ru,用于生成指定范围内的随机浮点数
from fractions import Fraction as f # 直接导入fractions函数,更名为f
ops = ['+', '-', '*', '/'] # 存储操作符
kuohao = ['(', '', ')'] # 存储括号，下标为0,1,2
left1 = r(0, 1)
left2 = r(0, 1)
left3 = r(0, 1)
right1 = r(1, 2)
right2 = r(1, 2)
right3 = r(1, 2)
if left1 == 0:
left2 = 1
left3 = 1
if right1 == 2:
right2 = 1
right3 = 1
else:
right2 = 2
right3 = 1
else:
if left2 == 0:
left3 = 1
right1 = 1
if right2 == 2:
right3 = 1
else:
right3 = 2
else:
left3 = 0
right1 = 1
right2 = 1
right3 = 2
add_1 = ru(0, 1)
add_1 = f(add_1).limit_denominator(10) # 限制最大分母值,小数变分数
add_2 = ru(0, 1)
add_2 = f(add_2).limit_denominator(10)
add_3 = r(1, 10)
add_4 = r(1, 10)
ops1 = r(0, 2)
ops2 = r(0, 3)
ops3 = r(0, 3)
# 由上述操作，随机生成表达式
eq = kuohao[left1] + str(add_1) + ops[ops1] + kuohao[left2] + str(add_2) + kuohao[right1] + ops[ops2] + kuohao[
left3] + str(add_3) + kuohao[right2] + ops[ops3] + str(add_4) + kuohao[right3]
return (eq)
def mutate(self, mutate_probability):
l = list(self.rep)
for i in xrange(self.sig_size):
r = ru(0,1)
if r < mutate_probability:
for j in xrange(i,self.sig_size, self.sig_size):
if l[j] == '1':
l[j] = '0'
elif l[j] == '0':
l[j] = '1'
self.rep = "".join(l)
def BuildField(wi,depth,inc,points,width,npoints) : xmin=-wi/2.0 xmax=wi/2.0 zmin=-depth/2.0 zmax=depth/2.0 pappend=points.append wappend=width.append npappend=npoints.append random.seed(1) ru=random.uniform zpos=zmin plus=0.1 minus=-0.1 while(zpos < zmax ) : xpos=xmin while (xpos < xmax) : pappend(xpos+ru(minus,plus)) pappend(0) pappend(zpos+ru(minus,plus)) pappend(xpos+ru(minus,plus)) pappend(0.1) pappend(zpos+ru(minus,plus)) pappend(xpos+ru(minus,plus)) pappend(0.2) pappend(zpos+ru(minus,plus)) pappend(xpos+ru(minus,plus)) pappend(0.3+ru(-0.1,0.1)) pappend(zpos+ru(minus,plus)) wappend(0.006) wappend(0.003) npappend(4) xpos+=inc zpos+=inc
def BuildField(wi, depth, inc, points, width, npoints):
xmin = -wi / 2.0
xmax = wi / 2.0
zmin = -depth / 2.0
zmax = depth / 2.0
pappend = points.append
wappend = width.append
npappend = npoints.append
random.seed(1)
ru = random.uniform
zpos = zmin
plus = 0.1
minus = -0.1
while zpos < zmax:
xpos = xmin
while xpos < xmax:
pappend(xpos + ru(minus, plus))
pappend(0)
pappend(zpos + ru(minus, plus))
pappend(xpos + ru(minus, plus))
pappend(0.1)
pappend(zpos + ru(minus, plus))
pappend(xpos + ru(minus, plus))
pappend(0.2)
pappend(zpos + ru(minus, plus))
pappend(xpos + ru(minus, plus))
pappend(0.3 + ru(-0.1, 0.1))
pappend(zpos + ru(minus, plus))
wappend(0.006)
wappend(0.003)
npappend(4)
xpos += inc
zpos += inc
ri.TransformBegin()
points = []
width = []
colour = []
normals = []
# get a pointer to the append method as it is faster than calling it
# each time
pappend = points.append
wappend = width.append
cappend = colour.append
nappend = normals.append
# ru is random.uniform brought in by the import statement above
for i in range(0, 2000):
for ix in range(0, 3):
cappend(ru(0, 1))
pappend(ru(-2, 2))
nappend(ru(0, 1))
wappend(ru(0.01, 0.2))
ri.Pattern('colour', 'colourShader')
ri.Bxdf('PxrDiffuse', 'bxdf',
{'reference color diffuseColor': ['colourShader:Cout']})
ri.Points({ri.P: points, ri.CS: colour, ri.WIDTH: width, ri.N: normals})
ri.TransformEnd()
ri.WorldEnd()
# and finally end the rib file
ri.End()
# Задача 1
from random import randint
numbers = []
for i in range(20):
numbers.append(randint(1, 101))
print(numbers)
# Задача 2
from random import uniform as ru
triangle = {x: [ru(1, 10.0), ru(1, 10.0)] for x in ["A","B", "C"]}
print(triangle)
# Задача 3
my_str = "Im the string"
def func (my_str):
print("***" + my_str + "***")
func(my_str)
# Задача 4
my_dict_1 = {"a":1, "b":2, "c":3, "d":4, "e":5}
my_dict_2 = {"f":6, "a":7, "g":8, "b":9, "h":10}
# a
print(list(my_dict_1.keys() & my_dict_2.keys()))
# б
print(list(my_dict_1.keys() - my_dict_2.keys()))
ri.Translate(0,0,4)
ri.TransformBegin()
points=[]
width=[]
colour=[]
normals=[]
# get a pointer to the append method as it is faster than calling it
# each time
pappend=points.append
wappend=width.append
cappend=colour.append
nappend=normals.append
# ru is random.uniform brought in by the import statement above
for i in range(0,2) :
for ix in range(0,3) :
cappend(ru(0,1))
pappend(ru(-2,2))
nappend(ru(0,1))
wappend(ru(0.01,0.2))
ri.Surface("plastic")
ri.Points({ri.P:points,ri.CS:colour,ri.WIDTH:width,ri.N:normals})
ri.TransformEnd()
ri.WorldEnd()
# and finally end the rib file
ri.End()
from datetime import datetime, timedelta
from math import sqrt, log
from random import uniform as ru
results = list()
N = 3
for i in range(20):
N = ((N * 120) / 100) + 10
edge = int(sqrt(N) * 1.25) + 1
pairs = list(
set([(
int(ru(0, edge)),
int(ru(0, edge)),
) for i in range(N)]))
t0 = datetime.now()
st = set()
count = 0
while pairs:
x, y = pairs.pop()
for ox, oy in pairs:
lsquared = (x - ox) * (x - ox) + (y - oy) * (y - oy)
triple = (x + ox, y + oy, lsquared)
if triple in st: count += 1
else: st.add(triple)
results.append(
(N, N * N, edge, (datetime.now() - t0).total_seconds(), count))
print(results[-1])
