在新函数中使用函数的结果（加上更多）

Question

我正在努力做到以下几点：

1）计算数据表中相同数字的数量。例：有三个介于10和20之间的数字。你知道吗

2）用相同的“#”号表示每个数字范围的值。例：10到20之间有3个数字=####。你知道吗

理想的结局是两个值相邻表示。你知道吗

不幸的是，我真的不明白第二步，任何帮助都将非常感谢。你知道吗

我的代码如下：

def count_range_in_list(li, min, max):
ctr = 0
for x in li:
    if min <= x <= max:
        ctr += 1
return ctr

def amountOfHashes(count_range_in_list,ctr):
  ctr = count_range_in_list()
  if ctr == 1:
    print ('#')
  elif ctr == 2:
     print ('##')
  elif ctr == 3:
     print ('###')
  elif ctr == 4:
     print ('####')
  elif ctr == 5:
     print ('#####')
  elif ctr == 6:
     print ('######')
  elif ctr == 7:
     print ('#######')
  elif ctr == 8:
     print ('########')
  elif ctr == 9:
     print ('#########')
  elif ctr == 10:
     print ('##########')


data = [90,30,13,67,85,87,50,45,51,72,64,69,59,17,22,23,44,25,16,67,85,87,50,45,51]
print(count_range_in_list(data, 0, 10),amountOfHashes)
print(count_range_in_list(data, 10, 20),amountOfHashes)
print(count_range_in_list(data, 20, 30),amountOfHashes)
print(count_range_in_list(data, 30, 40),amountOfHashes)
print(count_range_in_list(data, 40, 50),amountOfHashes)
print(count_range_in_list(data, 50, 60),amountOfHashes)
print(count_range_in_list(data, 60, 70),amountOfHashes)
print(count_range_in_list(data, 70, 80),amountOfHashes)
print(count_range_in_list(data, 80, 90),amountOfHashes)
print(count_range_in_list(data, 90, 100),amountOfHashes)    

Answer 1

可以这样计算列表中的数字：

def count_range_in_list(li, mini, maxi):
    return len([i for i in li if mini <= i <= maxi])

那么做一些散列就更简单了。只需将包含哈希符号的字符串与数字相乘。你知道吗

print(ount_range_in_list(data, 0, 10)*'#')

IPython中的示例：

In [1]: data = [90,30,13,67,85,87,50,45,51,72,64,69,59,17,22,23,44,25,16,67,85,87,50,45,51]            

In [2]: def count_range_in_list(li, mini, maxi): 
   ...:     return len([i for i in li if mini <= i <= maxi]) 
   ...:                                                                                                  

In [3]: print(count_range_in_list(data, 0, 10)*'#')                                                      


In [4]: print(count_range_in_list(data, 10, 20)*'#')                                                     
###

In [5]: print(count_range_in_list(data, 20, 30)*'#')                                                     
####