【填空题】var status = 1; var msg; (status == 1) { msg = "Online"; } if (status == 2) { msg = "Away"; } { msg = "Offline"; }

假设conn为数据库连接对象，下面哪条语句可向表TeacherInfo中添加变长字符串类型的Name列 A: seq="INSERTINTOTABLETeacherInfoADDNameVARCHAR(50)"conn.execute(seq) B: seq="ALTERTABLETeacherInfoADDNameVARCHAR(50)"conn.execute(seq) C: seq="ALTERTABLETeacherInfoADDNameVARCHAR(50)"conn.commit(seq) D: seq="INSERTINTOTABLETeacherInfoADDNameVARCHAR(50)"conn.commit(seq)

下列哪一选项属于JS的输入输出语句（） A: alert(msg); B: console.log(msg); C: prompt(msg); D: 以上都是

用seq函数，生成向量X= (1,2,3,4,5,6,7,8,9,10)的命令是 A: X<-seq[1:10] B: X<-seq(1, by = 1, length.out = 1) C: X<-seq(1, by = 10, length.out = 1) D: X<-seq(1, by = 1, length.out = 10)

以下关于方法声明中正确的是（） A: A.public final writeLog(String msg) B: B.public final abstract void writeLog(String msg) C: C.public static final void writeLog(String msg) D: D.public static abstract void writeLog(String msg)

有如下伪指令定义： msg byte welcome , 0 count= $-msg则：count的值为

已知seq为长度大于10的列表，并且已导入random模块，那么[random.choice(seq)foriinrange(10)]和random.sample(seq,10)等价。

MSG in Chinese means 味精.

下列哪段程序能够实现线性分组码的编码 A: code = encode(msg,n,k,'cyclic/fmt',genpoly) B: code = encode(msg,n,k,'linear/fmt',genmat) C: code = encode(msg,n,k,'hamming/fmt',prim_poly) D: code = convenc(msg,trellis, puncpat,init_state)

对如下JSP代码说法正确的是（）. <% Sringstr=”Hello.JBIT!”; session.setAttribute(“msg’,str); StringgetStr=session.getAttribute(“msg”); out.println(getStr); %>