1.1 Core JavaScript(continued)

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One of the most common ways to form expressions in JavaScript is to use operators like these:

    // Operators act on values(the operands) to produce a new value.

    // Arithmetic operators are most common:

    3 + 2          //=>5: addition

    3 - 2           //=>1: subtraction

1.1 Core JavaScript(continued)

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原文地址：http://www.cnblogs.com/specification/p/4558534.html