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 class="brush:php;toolbar:false">>>> str = "the length of (%s) is %d" %(&#39;runoob&#39;,len(&#39;runoob&#39;))
>>> 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