/*
             字符串位置（索引）
            */

            var name = "waitting liang";
            console.log("name: ",name);
            console.log("name的第8个字符是： ",name[8]); //空格

            /*
             字符串长度
            */

            var name = "waitting liang";
            console.log("name的长度 ",name.length);  //14

            /*
             字符串使用转义字符
            */

            var myHobby = ‘I can\‘t play basketball‘;
            var myHobby = "I can‘t play basketball";