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Python基础入门之seed()方法的使用

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Release： 2016-06-10 15:12:30
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 seed() 设置生成随机数用的整数起始值。调用任何其他random模块函数之前调用这个函数。
语法

以下是seed()方法的语法：

seed ( [x] )
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注意：此函数是无法直接访问的，所以需要导入seed模块，然后需要使用random静态对象来调用这个函数。
参数

  • x -- 这是下一个随机数的种子。如果省略，则需要系统时间，以产生下一个随机数。

返回值

此方法不返回任何值。
例子

下面的例子显示了seed()方法的使用。

#!/usr/bin/python
import random

random.seed( 10 )
print "Random number with seed 10 : ", random.random()

# It will generate same random number
random.seed( 10 )
print "Random number with seed 10 : ", random.random()

# It will generate same random number
random.seed( 10 )
print "Random number with seed 10 : ", random.random()
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当我们运行上面的程序，它会产生以下结果：

Random number with seed 10 : 0.57140259469
Random number with seed 10 : 0.57140259469
Random number with seed 10 : 0.57140259469
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python
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