python学习之——计算给出代码中注释、代码、空行的行数

题目：计算给出代码中注释、代码、空行的行数

来源：网络

思路：注释行以 ‘#’开头，空行以 ‘\n’ 开头，以此作为判断

def count_linenum(fname):

    fobj = open(fname,"rU")

    #print fobj.readlines()

    count_blankline = 0

    count_notes = 0

    count_code = 0

    for eachLine in fobj:

        if eachLine[0] == '\n':

            count_blankline += 1

        elif eachLine[0] == '#':

            count_notes += 1

        else:

            count_code += 1

    print "count_blankline:%d" %count_blankline

    print "count_notes:%d" %count_notes

    print "count_code:%d" %count_notes

    fobj.close()

if __name__ == '__main__':

    filename = raw_input("please enter filename:")

    count_linenum(filename)