摘要:
其实这一节,重点是要复习一下字符串的操作 http://www.runoob.com/jsref/jsref-obj-string.html Q:This is a list of items: cherries,limes,oranges,apples.提取这句话中包含的项目列表。注:已(:)开始 阅读全文
摘要:
字面值: var str1='this is a simple string'; var num1=1.45; var answer1=true; 基本类型: var str2=String('this is a simple string'); var num2=Number(1.45); var 阅读全文