Python print 輸出到檔案__Python

Python3.x

#!/usr/bin/env python3#coding:utf-8year = 1years = 5bj = 10000rate = 0.05f = open("./source/interest.bak", 'w+')while year < years:    bj = bj * (1 + rate)    print("第{0}年,本金息總計{1}".format(year, bj), file=f)    year += 1

Python2.x

#!/usr/bin/env python#coding:utf-8year = 1years = 15bj = 10000rate = 0.05f = open("./source/interest.bak", 'w+')while year < years:    bj = bj * (1 + rate)    print >> f, "第%d年,本金息總計%0.2f" % (year, bj)    year += 1