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                [TOC] # 運算符 ##1.關系運算符 大于 > 小于 < 大于或等于 >= 小于或等于 <= ##2.邏輯運算符 ### 2.1邏輯與 && ![](https://img.kancloud.cn/6a/7b/6a7b9a02b99bb39b4ec556678d9e74da_463x199.png) ``` onsole.log(0 && 0);0 console.log(0 && 1);0 console.log(1 && 0);0 console.log(1 && 2);2 console.log(2 && 3);3 ``` ** 邏輯與,如果表達式1為真,則返回表達式2的值,如果表達式1為假,則返回表達式1的值;** ###2.2邏輯或 || ![](https://img.kancloud.cn/1b/66/1b66d0d202056e3e73796b930d27196a_645x162.png) ``` console.log(0 || 0);0 console.log(0 || 1);1 console.log(1 || 0);1 console.log(1 || 2);1 console.log(2 || 3);2 ``` **邏輯或,如果表達式1為真,則返回表達式1的值,如果表達式1為假,則返回表達式2的值;** ###2.3邏輯非 ! ![](https://img.kancloud.cn/8d/42/8d42833604fa438b45049beea8704f79_324x104.png) ##3.等于和全等于 賦值 = 等于 == 全等于 === ***** 值類型 ![](https://img.kancloud.cn/2c/54/2c54cf40ce9f905ab8402a1c8e10c465_755x111.png) ***** 引用數據類型 var ar1 = [10,98,45,32]; var ar2 = [10,98,45,32]; console.log(ar1 == ar2); ![](https://img.kancloud.cn/f4/4b/f44baeb4446ce45b77fd474571bceadc_1243x385.png) 內存地址圖 ![](https://img.kancloud.cn/db/12/db1291abadadfd00135efbd8ef4b8808_779x543.png)
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