摘要：
字符串1，属性 length2，方法charAtcharCodeAtconcatindexoflastIndexOflocaleComparematchreplacesearchslicesplitsubstrsubstringtoLowerCasetoStringtoUpperCasevalueOf静态方法String.fromCharCode3，实例1.声明var myString = new String("Every good boy does fine.");var myString = "Every good boy does fine."; 阅读全文