不幸的是，字符串化不能总是用于注释!因此，坚持在每行前加上#的标准更安全。

这里有一个例子:

test1 = [1, 2, 3, 4,]       # test1 contains 4 integers

test2 = [1, 2, '''3, 4,'''] # test2 contains 2 integers **and the string** '3, 4,'

Python中的内嵌注释以哈希字符开始。

hello = "Hello!" # This is an inline comment
print(hello)

你好!

注意，字符串文字中的哈希字符只是一个哈希字符。

dial = "Dial #100 to make an emergency call."
print(dial)

拨打100拨打紧急电话。

散列字符也可以用于单行或多行注释。

hello = "Hello"
world = "World"
# First print hello
# And print world
print(hello)
print(world)

你好 世界

用三双引号将文本括起来以支持docstring。

def say_hello(name):
    """
    This is docstring comment and
    it's support multi line.
    :param name it's your name
    :type name str
    """
    return "Hello " + name + '!'


print(say_hello("John"))

你好约翰!

在文本中加上三个单引号作为块注释。

'''
I don't care the parameters and
docstrings here.
'''

Python 2.7.13:

单:

"A sample single line comment "

多行:

"""
A sample
multiline comment
on PyCharm
"""

好吧，你可以试试这个(当运行引号时，第一个问题的输入应该用'引号括起来):

"""
print("What's your name? ")
myName = input()
print("It's nice to meet you " + myName)
print("Number of characters is ")
print(len(myName))
age = input("What's your age? ")
print("You will be " + str(int(age)+1) + " next year.")

"""
a = input()
print(a)
print(a*5)

"""之间的任何内容都将被注释。

如果你正在寻找单行注释，那么它是#。

从公认的答案…

你可以使用三引号字符串。当它们不是文档字符串(类/函数/模块中的第一件事)时，它们将被忽略。

这是不正确的。与注释不同，三引号字符串仍然被解析，并且必须在语法上有效，无论它们出现在源代码中的哪个位置。

如果你试图运行这段代码…

def parse_token(token):
    """
    This function parses a token.
    TODO: write a decent docstring :-)
    """

    if token == '\\and':
        do_something()

    elif token == '\\or':
        do_something_else()

    elif token == '\\xor':
        '''
        Note that we still need to provide support for the deprecated
        token \xor. Hopefully we can drop support in libfoo 2.0.
        '''
        do_a_different_thing()

    else:
        raise ValueError

你会得到…

ValueError: invalid \x escape

.．.Python 2。x或…

SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 79-80: truncated \xXX escape

.．.Python 3.x。

做被解析器忽略的多行注释的唯一方法是…

elif token == '\\xor':
    # Note that we still need to provide support for the deprecated
    # token \xor. Hopefully we can drop support in libfoo 2.0.
    do_a_different_thing()

在Python 2.7中，多行注释是:

"""
This is a
multilline comment
"""

如果你在一个类中，你应该正确地制表。

例如:

class weather2():
   """
   def getStatus_code(self, url):
       world.url = url
       result = requests.get(url)
       return result.status_code
   """