1、從1到100的和

#!/usr/bin/python#-*- coding:UTF-8 -*-sum = 0for i in range(1, 101):    sum = sum + iPRint sum
2、輸出1到100中所有的質數
def judge(x):    for i in range(2, x):        if x%i == 0:            return False    return Truefor i in range(2, 101):    if judge(i):        print i     3、計算單詞出現次數
f = open("test.txt")lines = f.readlines()count = {}for line in lines:    tokens = line.strWord in count:    print word, count[word]