本文实例讲述了python3生成随机数的方法。分享给大家供大家参考。具体实现方法如下：

该实例是根据一本书上看到过一个随机数的小程序，经过自己改动，变为了一个猜数字的小游戏，现在在python3下重写了一遍。

这是一个控制台下的猜数程序，winxp+python3.2+eric5和IDLE测试通过，但直接用winxp的命令行运行有问题，原因还未知，慢慢找。ubuntu+python3.1测试通过。

具体实现代码如下：

复制代码 代码如下:

-- coding: utf-8 --

import Image,ImageDraw,ImageFont
import random
import math, string

class RandomChar():
"""用于随机生成汉字"""
@staticmethod
def Unicode():
val = random.randint(0x4E00, 0x9FBF)
return unichr(val)

@staticmethod
def GB2312():
head = random.randint(0xB0, 0xCF)
body = random.randint(0xA, 0xF)
tail = random.randint(0, 0xF)
val = ( head << 8 ) | (body << 4) | tail
str = "%x" % val
return str.decode('hex').decode('gb2312')

class ImageChar():
def init(self, fontColor = (0, 0, 0),
size = (100, 40),
fontPath = 'wqy.ttc',
bgColor = (255, 255, 255),
fontSize = 20):
self.size = size
self.fontPath = fontPath
self.bgColor = bgColor
self.fontSize = fontSize
self.fontColor = fontColor
self.font = ImageFont.truetype(self.fontPath, self.fontSize)
self.image = Image.new('RGB', size, bgColor)

def rotate(self):
self.image.rotate(random.randint(0, 30), expand=0)

def drawText(self, pos, txt, fill):
draw = ImageDraw.Draw(self.image)
draw.text(pos, txt, font=self.font, fill=fill)
del draw

def randRGB(self):
return (random.randint(0, 255),
random.randint(0, 255),
random.randint(0, 255))

def randPoint(self):
(width, height) = self.size
return (random.randint(0, width), random.randint(0, height))

def randLine(self, num):
draw = ImageDraw.Draw(self.image)
for i in range(0, num):
draw.line([self.randPoint(), self.randPoint()], self.randRGB())
del draw

def randChinese(self, num):
gap = 5
start = 0
for i in range(0, num):
char = RandomChar().GB2312()
x = start + self.fontSize i + random.randint(0, gap) + gap i
self.drawText((x, random.randint(-5, 5)), RandomChar().GB2312(), self.randRGB())
self.rotate()
self.randLine(18)

def save(self, path):
self.image.save(path)

希望本文所述对大家的Python程序设计有所帮助。