Python 类型错误：使用 %s 时没有足够的格式字符串参数
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TypeError: not enough arguments for format string when using %s
提问by beepbeep
this is my code
这是我的代码
import sys
name = input("Enter your name:")
last_name = input("Enter your last name:")
gender = input("Enter your gender:")
age = input("Enter your age:")
print ("So your name is %s, your last name is %s, you are %s and you are %s years old" % name, last_name, gender, age)
I've searched the topic but I don't understand.
我已经搜索了该主题，但我不明白。
采纳答案by beepbeep
You need to put your arguments for string formatting in parenthesis:
您需要将字符串格式的参数放在括号中：
print (... % (name, last_name, gender, age))
Otherwise, Python will only see nameas an argument for string formatting and the rest as arguments for the printfunction.
否则，Python 只会将其name视为字符串格式的参数，而将其余部分视为函数的参数print。
Note however that using %for string formatting operations is frowned upon these days. The modern approach is to use str.format:
但是请注意，%这些天不赞成使用字符串格式化操作。现代方法是使用str.format：
print ("So your name is {}, your last name is {}, you are {} and you are {} years old".format(name, last_name, gender, age))
回答by arshajii
You need a set of parenthesis:
你需要一组括号：
>>> '%s %s' % 'a', 'b' # what you have
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: not enough arguments for format string
>>>
>>>
>>> '%s %s' % ('a', 'b') # correct solution
'a b'
'%s %s' % 'a', 'b'is evaluated as ('%s %s' % 'a'), 'b', which produces an error in '%s %s' % 'a'since you have fewer arguments than format specifiers.
'%s %s' % 'a', 'b'计算为('%s %s' % 'a'), 'b'，这会产生错误，'%s %s' % 'a'因为您的参数少于格式说明符。
print("So your name is %s, your last name is %s, you are %s and you are %s years old" % (name, last_name, gender, age))
