Merge pull request #296 from ChanYuLeung/patch-2

减少“字符串转换成整数”的篇幅-重新提交:-)
Merge pull request #295 from ChanYuLeung/master

减少“字符串转换成整数”的篇幅
Update 01.04.md
Update 01.04.md
Update 01.04.md
Update 01.04.md
Update 01.04.md
Merge pull request #6 from julycoding/master

update master