Python print 输出到文件

Python3.x

1. #!/usr/bin/env python3
2. #coding:utf-8
3. year = 1
4. years = 5
5. bj = 10000
6. rate = 0.05
7. f = open(“./source/interest.bak”, ‘w+’)
8. while year < years:
9. bj = bj * (1 + rate)
10. print(“第{0}年,本金息总计{1}”.format(year, bj), file=f)
11. year += 1

Python2.x

1. #!/usr/bin/env python
2. #coding:utf-8
3. year = 1
4. years = 15
5. bj = 10000
6. rate = 0.05
7. f = open(“./source/interest.bak”, ‘w+’)
8. while year < years:
9. bj = bj * (1 + rate)
10. print >> f, “第%d年,本金息总计%0.2f” % (year, bj)
11. year += 1
12.  

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