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"

其他回答

在中间用,(逗号)就可以了。

为了更好地理解,请参阅下面的代码:

# Weight converter pounds to kg

weight_lbs = input("Enter your weight in pounds: ")

weight_kg = 0.45 * int(weight_lbs)

print("You are ", weight_kg, " kg")

如果你在字符串和变量之间使用逗号,就像这样:

print "If there was a birth every 7 seconds, there would be: ", births, "births"

在当前的python版本中,您必须使用括号,如下所示:

print ("If there was a birth every 7 seconds", X)

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))

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