摘要：
typeof 运算符 typeof 运算符把类型信息当作字符串返回。typeof 返回值有六种可能： "number," "string," "boolean," "object," "function," 和 "undefined." undefined类 - 如果变量是 undefined类型 string - 如果变量是string类型 ... 阅读全文
posted @ 2008-02-14 17:05 胖在一方 阅读(333) 评论(0) 推荐(0)
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