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第二节的内容
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数据类型初识/README.MD

Lines changed: 8 additions & 1 deletion
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@@ -667,4 +667,11 @@ Symbol值不能与其他类型的值进行运算,会报错;但是可以显式
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console.log("22"+11);
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console.log("22"-2+11);
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console.log("22"+11-2);
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console.log(+"22"+11);
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console.log(+"22"+11);
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console.log(Number(true))
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console.log(Number(false))
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console.log(Number(""))
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console.log(Number([1,2,3]))
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console.log(parseInt([3,2,3]))
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console.log(parseFloat([1,2,3]))

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