申論 2以下是完整的Python 程式碼，請說明此程式的詳細功能為何？（10 分）import os.pathfile1 = input("Input a file name: ")file2 = input("Input the other file name: ")while not os.path.isfile(file1):print("The file does not exist!")file1 = input("Input a file name again: ")while os.path.isfile(file2):answer = input("The file existed, Overwrite it? y/n? ")if answer == 'n' or answer=='N':file2 = input("Input a file name again: ")else:breakfileObject1 = open(file1, "r")fileObject2 = open(file2, "w")content = fileObject1.read()fileObject2.write(content)fileObject1.close()fileObject2.close()