我用python计算出如果每7秒出生一个孩子5年内会有多少个孩子出生。问题在我的最后一行。我如何得到一个变量的工作时，我打印文本的任何一方?
这是我的代码:
currentPop = 312032486
oneYear = 365
hours = 24
minutes = 60
seconds = 60
# seconds in a single day
secondsInDay = hours * minutes * seconds
# seconds in a year
secondsInYear = secondsInDay * oneYear
fiveYears = secondsInYear * 5
#Seconds in 5 years
print fiveYears
# fiveYears in seconds, divided by 7 seconds
births = fiveYears // 7
print "If there was a birth every 7 seconds, there would be: " births "births"
当前回答
你可以使用f-string或.format()方法
使用f-string
print(f'If there was a birth every 7 seconds, there would be: {births} births')
使用.format ()
print("If there was a birth every 7 seconds, there would be: {births} births".format(births=births))
其他回答
如果你想使用python 3，这很简单:
print("If there was a birth every 7 second, there would be %d births." % (births))
你可以使用格式化字符串:
print "There are %d births" % (births,)
或者在这个简单的例子中:
print "There are ", births, "births"
PYTHON 3
最好使用格式选项
user_name=input("Enter your name : )
points = 10
print ("Hello, {} your point is {} : ".format(user_name,points)
或将输入声明为字符串并使用
user_name=str(input("Enter your name : ))
points = 10
print("Hello, "+user_name+" your point is " +str(points))
从python 3.6开始，你可以使用文字字符串插值。
births = 5.25487
>>> print(f'If there was a birth every 7 seconds, there would be: {births:.2f} births')
If there was a birth every 7 seconds, there would be: 5.25 births
使用字符串格式
print("If there was a birth every 7 seconds, there would be: {} births".format(births))
# Will replace "{}" with births
如果你做一个玩具项目，使用:
print('If there was a birth every 7 seconds, there would be:' births'births)
or
print('If there was a birth every 7 seconds, there would be: %d births' %(births))
# Will replace %d with births
