$ python script.py
#!/usr/bin/python
#!/usr/bin/env python
$ script.py
x = input("Please input x:")
Please input x:
input("Press Enter")
>>> print(1)
1
>>> print("Hello World")
Hello World
>>> x = 12
>>> print(x)
12
>>> s = 'Hello'
>>> print(s)
Hello
>>> L = [1,2,'a']
>>> print(L)
[1, 2, 'a']
>>> t = (1,2,'a')
>>> print(t)
(1, 2, 'a')
>>> d = {'a':1, 'b':2}
>>> print(d)
{'a': 1, 'b': 2}
>>> s
'Hello'
>>> x = len(s)
>>> print("The length of %s is %d" % (s,x))
The length of Hello is 5
>>> pi = 3.141592653
>>> print('.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('0.3f' % 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 x in range(0,10): print(x) 0 1 2 3 4 5 6 7 8 9
>>> for x in range(0,10): print (x,end = '') 0123456789
>>> "Hello""World" 'HelloWorld' >>> x = "Hello" >>> y = "world" >>> xy Traceback (most recent call last): File "<pyshell#10>", line 1, in <module> xy NameError: name 'xy' is not defined >>> x+y 'Helloworld'
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