python怎么实现统计百分比

python如何实现统计百分比
前天才接触python

我想统计一个文本中 每个数字出现的百分比 

在网上找了一段代码 可以统计出现的次数了

求助下如何统计百分比，谢谢！

以下是统计次数的代码

Python code

import sysimport string#import collectionsif len(sys.argv) == 1 or sys.argv[1] in {"-h", "--help"}: print("usage: uniqueword filename_1 filename_2 ... filename_n") sys.exit()else: words = {}  # words = collections.defaultdict(int) strip = string.whitespace + string.punctuation + string.digits + "\"'" for filename in sys.argv[1:]:  for line in open(filename):   for word in line.split():    word = word.strip(strip)    if len(word) >= 2:     words[word] = words.get(word, 0) + 1     # words[word] += 1 for word in sorted(words):  print("'{0}' occurs {1} times".format(word,words[word]))

[解决办法]
四舍五入：print("{} - {} - {}%".format(k, v, round(v/total*100, 2)));

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