python练习程序（c100经典例4）

题目：

输入某年某月某日，判断这一天是这一年的第几天？

def judge_run(year):
    a=year/4.0;
    b=year/100.0;
    c=year/400.0;
    if a==int(a) and b!=int(b):
        return 1
    if c==int(c):
        return 1
    return 0

def judge_day(year,month,day):
    m1=[31,28,31,30,31,30,31,31,30,31,30,31];

    y=judge_run(year);
    m=0;
    for i in range(0,month-1):
        m=m+m1[i];
    if month>2:
        m=m+y;
    return m+day;

print judge_day(2014,9,12)