给出下面代码: a = input("").split(",") if isinstance(a,list): print("{} is list".format(a)) else: print("{} is not list".format(a)) 代码执行时,从键盘获得1,2,3,则代码的输出结果是: ______。
A、1,2,3 is list
B、['1', '2', '3'] is list
C、执行代码出错
D、1,2,3 is not list
A、1,2,3 is list
B、['1', '2', '3'] is list
C、执行代码出错
D、1,2,3 is not list
class Person{
String name,department ;
public void printValue(){
System.out.println("name is"+name);
System.out.println("department is "+department);
}
}
public class Teacher extends Person{
int salary;
public void printValue(){
//doing the same as in the parent method printValue()
//including print the value of name and department.
System.out.printin("salary is"+salary);
}
}
下面的______表达式可以加入printValue()方法的”doing the same as…”部分.
A.printValue(); B.this.printValue();
C.person.printValue();D.super.printValue();
When, where V is some known symmetric and positive definite matrix, we can still use the T and F test statistics derived in Section 3.7 to conduct hypothesis testing.
A、Mencius
B、Laozi
C、Zhuangzi
D、Confucius
A、a,b,c,d
B、无输出
C、执行代码出错
D、abcd
A、[1,2,3,4,5]
B、1,,2,,3,,4,,5
C、[1,,2,,3,,4,,5]
D、1,2,3,4,5
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