Python根据值制作列表并打印某些结果

Question

这是我的代码：

for i in range(1,76):
    input('Enter name for guest'+str( i)+': ')
    ages=int(input('Enter age for guest '+str(i)+':'))

    for x in range(20,30) in list(ages):
        print('Number of people in 20s is ' +str(x) )

如何将结果列入清单并打印出20多岁的人数？谢谢。

Answer 1

这是你想要的吗？

ages = []
for i in range(1,76):
    input('Enter name for guest'+str( i)+': ')
    ages.append(int(input('Enter age for guest '+str(i)+':')))

n = len([a for a in ages if 20 <= a < 30])
print('Number of people in 20s is ' + str(n) )