python中raw_input()与input（）和print(&acute&acute)与print&acute&acute

python Traceback (most recent call last):
File “”, line 1, in
NameError: name ‘raw_input’ is not defined

python
版本2.7 -> 版本3.0
输入与输出变化 ：

1、输出 print

>>> print'hello,world'
  File "<stdin>", line 1
    print'hello,world'
                     ^
SyntaxError: invalid syntax
>>> print 'hello, world'
  File "<stdin>", line 1
    print 'hello, world'
                       ^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print('hello, world')?

print函数
print’’ —改为–> print(‘hello,world’)

 print('hello,world')
hello,world

2、输入函数

–>python
2.7版本 name = raw_input()
3.0版本 name = input()

 name = raw_input()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'raw_input' is not defined

name = raw_input() ----改为–> name = input()

 name = input()
123
>>> print(123)
123