Python自学 第一次作业

#coding=utf-8

def function1(*num):
    for i in num:
        if isinstance(i,int):
            pass
        else:
            return "wrong"
    a = sorted(num)
    print a
    return "Maximum is %d and Minimum is %d" %(a[-1],a[0])


print function1(2,3,4,5,6,7,8,9,4,11,4,2,23)

def function2(*num):
    for i in num:
        if isinstance(i,str):
            pass
        else:
            return 'wrong'
    a = sorted(num,key=lambda k:len(k))
    print a
    return "Maximum is %s" %a[-1]

print function2('dfa','fsdfsd','a')
#获得doc的帮助文档
#采用了两种方法，第一种方法是shell执行帮助
#
def get_doc(modulename):
    exec "import %s" %modulename
    doc = modulename + ".__doc__"
    exec "print %s" % doc
    return doc

def get_doc1(modulename):
    exec "import os"
    a = 'pydoc %s' % modulename
    m = os.popen(a).read()
    return m
print get_doc1('urllib')

print get_doc('os')


import os
#获得任意一个文件的磁盘路径，输入文件内容
def  get_text(f):
    if os.path.exists(f):
        filehandler = file(f)
        ans = filehandler.read()
        filehandler.close()
        return ans
print 'get_text'
print get_text('G:\\love.txt')

#获得文件夹下的文件列表
import os
import glob
def get_dir(folder=None):
    if folder == None:
        folder = os.getcwd()
    if os.path.isdir(folder):
        dir = "%s/*.*" %folder
        temp = glob.glob(dir)
        if temp == None:
            print 'not exist'
        else:
            print temp

print get_dir('G:')