freeCodeCamp/guide/chinese/certifications/javascript-algorithms-and-d.../basic-javascript/add-two-numbers-with-javasc.../index.md

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---
title: Add Two Numbers with JavaScript
localeTitle: 使用JavaScript添加两个数字
---
# 使用JavaScript添加两个数字
JavaScript使用`+`符号进行添加。
```
var sum = 10 + 10; //sum gets the value 20
```