python文件的打开

with open('pi_digtal.txt') as file_object:    contents = file_object.read()    print(contents.rstrip())#rstrip()删除字符串末尾的空格

打开方式：

filename = 'pi_digtal.txt'with open(filename) as fileobject:    for line in fileobject:        print(line.rstrip())print(" ")filename = 'pi_digtal.txt'with open(filename) as fileobject:    lines = fileobject.readlines()#readlines从每一行读取for line in lines:    print(line.rstrip())

注：打开的文件实际存在