摘要: 1 var a = true; 2 if (typeof(a) "number") { 3 alert("数字"); 4 } else if (typeof(a) "string") { 5 alert("字符"); 6 } else if (typeof(a) "boolean") { 7 ale 阅读全文
posted @ 2021-04-08 17:28 Topcoder-V 阅读(116) 评论(0) 推荐(0) 编辑