模块练习

    小程序：根据用户输入选择可以完成以下功能：
    创意文件，如果路径不存在，创建文件夹后再创建文件
    能够查看当前路径
    在当前目录及其所有子目录下查找文件名包含指定字符串的文件

 1 import os
def currentdir():
    return os.getcwd()

def writefile(inputfile):
    #r"test	est1.txt"
    fullpath = os.path.join(currentdir,inputfile )
    full_dir = os.path.dirname(fullpath)
    if not os.path.exists(full_dir):
        os.makedirs(full_dir)
    filename1 = os.path.basename(fullpath)
    with open(fullpath,'w+',encoding = 'utf-8') as f_write:
           f_write.write('test1file
')
           f_write.write('dfile
')
           f_write.write('best
')
def getfile(inputfile):
    fullpath = os.path.join(currentdir, inputfile)
    if not os.path.exists(fullpath):
        writefile(input_path)
        print("当前路径为:", os.path.dirname(fullpath))
    with open(fullpath, 'r+', encoding='utf-8') as f_read:
        for i in f_read:
            print(i.strip('
'))
    print("当前路径为:",os.path.dirname(fullpath))
def searchfile(inputfile,content):
    ser_content = input("search content")
    fullpath = os.path.join(currentdir, inputfile)
    for res in os.listdir(os.path.dirname(fullpath)):

        st1 = inputfile.split(os.sep)
        pst1 = os.sep.join(st1[:-1])
        new_fullpath = os.path.join(currentdir,pst1,res)

    with open(new_fullpath, 'r+', encoding='utf-8') as f_read:
        for i in f_read:
            if ser_content in i:
                print(new_fullpath)
            else:
                print('nothing')
currentdir = currentdir()
while True:
    input_path = input("请输入路径>>>")
    cmd_dict = {"getfile": getfile, "writefile": writefile, "searchfile":searchfile}
    for fun in cmd_dict:
        print (fun)
    opt = input("请输入:>>>")
    if opt in cmd_dict:
        if not os.path.exists(os.path.join(currentdir, input_path)):
            cmd1 = cmd_dict.get(opt)
            cmd1(input_path)
        elif opt == 'searchfile':
            searchfile(input_path,'file')

        else:continue
    continue