This website requires JavaScript.
Explore
Help
Register
Sign In
greatbody
/
freeCodeCamp
mirror of
https://github.com/freeCodeCamp/freeCodeCamp.git
Watch
1
Star
0
Fork
You've already forked freeCodeCamp
0
Code
Issues
Projects
Releases
Wiki
Activity
2399b1c55a
freeCodeCamp
/
guide
/
chinese
/
javascript
/
tutorials
/
decrement-a-number-with-jav...
/
index.md
270 B
Raw
Blame
History
title
localeTitle
Decrement a Number with JavaScript
使用JavaScript减少数字
您可以使用
--
运算符轻松地将变量减1或减
1
。
i--;
相当于
i = i - 1;
**注意:**整条线变为
i--;
,消除了对等号的需要。