Python3中关于print函数的使用总结

>>> print("runoob") # 输出字符串

runoob

>>> print(100)   # 输出数字

100

>>> str = 'runoob'

>>> print(str)   # 输出变量

runoob

>>> L = [1,2,'a']   # 列表

>>> print(L)

[1, 2, 'a']

>>> t = (1,2,'a')   # 元组

>>> print(t)

(1, 2, 'a')

>>> d = {'a':1, 'b':2} # 字典

>>> print(d)

{'a': 1, 'b': 2}

<p>支持参数格式化，与 C 语言的 printf 类似</p>

<pre>>>> str = "the length of (%s) is %d" %('runoob',len('runoob'))

>>> print(str)

the length of (runoob) is 6

>>> nHex = 0xFF

>>> print("nHex = %x,nDec = %d,nOct = %o" %(nHex,nHex,nHex))

nHex = ff,nDec = 255,nOct = 377

>>> pi = 3.141592653

>>> print('%10.3f' % pi) #字段宽10，精度3

  3.142

>>> print("pi = %.*f" % (3,pi)) #用*从后面的元组中读取字段宽度或精度

pi = 3.142

>>> print('%010.3f' % pi) #用0填充空白

000003.142

>>> print('%-10.3f' % pi) #左对齐

3.142 

>>> print('%+f' % pi) #显示正负号

+3.141593

>>> for i in range(0,6):

...  print (i,)

...

0

1

2

3

4

5

>>> for i in range(0,3):

...  print (i)

...

0

1

2

>>>

>>> for i in range(0,3):

...  print(i, end = '' )

...

012