Python3.2中Print函数用法实例详解-Python Tutorial-php.cn

本文实例讲述了Python3.2中Print函数用法。分享给大家供大家参考。具体分析如下：

1. 输出字符串

>>> strHello = 'Hello World' >>> print (strHello) Hello World

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2. 格式化输出整数

支持参数格式化，与C语言的printf类似

>>> strHello = "the length of (%s) is %d" %('Hello World',len('Hello World')) >>> print (strHello) the length of (Hello World) is 11

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3. 格式化输出16进制，十进制，八进制整数

#%x --- hex 十六进制
#%d --- dec 十进制
#%o --- oct 八进制

>>> nHex = 0xFF >>> print("nHex = %x,nDec = %d,nOct = %o" %(nHex,nHex,nHex)) nHex = ff,nDec = 255,nOct = 377

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4.格式化输出浮点数(float)

import math >>> print('PI=%f'%math.pi) PI=3.141593 >>> print ("PI = %10.3f" % math.pi) PI = 3.142 >>> print ("PI = %-10.3f" % math.pi) PI = 3.142 >>> print ("PI = %06d" % int(math.pi)) PI = 000003

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5. 格式化输出浮点数(float)

>>> precise = 3 >>> print ("%.3s " % ("python")) pyt >>> precise = 4 >>> print ("%.*s" % (4,"python")) pyth >>> print ("%10.3s " % ("python")) pyt

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6.输出列表(List)

输出列表

>>> lst = [1,2,3,4,'python'] >>> print (lst) [1, 2, 3, 4, 'python']

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输出字典

>>> d = {1:'A',2:'B',3:'C',4:'D'} >>> print(d) {1: 'A', 2: 'B', 3: 'C', 4: 'D'}

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7. 自动换行

print 会自动在行末加上回车,如果不需回车，只需在print语句的结尾添加一个逗号”,“，就可以改变它的行为。

>>> for i in range(0,6): print (i,) 0 1 2 3 4 5

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或直接使用下面的函数进行输出：

>>> import sys >>> sys.stdout.write('Hello World') Hello World

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希望本文所述对大家的Python程序设计有所帮助。

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Python3.2 Print函数用法

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