A: score = float(input()) degree = "EEEEEEDCBAA" score_five = degree[score / 10] print(score_five)
B: score = float(input()) degree = "EEEEEEDCBAA" score_five = degree[score // 10] print(score_five)
C: score = float(input()) degree = "EEEEEEDCBAA" score_five = degree[int(score // 10)] print(score_five)
D: score = float(input()) degree = "EEEEEEDCBA" score_five = degree[int(score // 10)] print(score_five)
举一反三
- 在如下结构体定义中,不正确的是○。 A: struct student { int no; char name[10]; float score; } B: struct stud[20] { int no; char name[10]; float score; } C: struct student { int no; char name[10]; float score; }stud[20]; D: struct{int no;char name[10];float score;}stud[100];
- 在如下结构体中,不正确的是( )。 A: struct student {char name[10]; float score; }; B: struct stu[5] {char name[10]; float score; }; C: struct student {char name[10]; float score; } stu[5]; D: struct {char name[10]; float score; }stu[5];
- 若有定义int score[10];,则对score数组中的元素的正确引用是( ) A: score[10] B: score[6.0] C: score[0] D: score(7)
- 在下列代码中,有( )处实现了拆箱。 int score=5; object o= score; o=10; score =(int)o; object oScore = score;
- 从键盘上输入一个百分制成绩score,按下列原则输出其等级:score≥90,等级为A;80≤score<90,等级为B;70≤score<80,等级为C;60≤score<70,等级为D;score<60,等级为E。
内容
- 0
下面代码的输出结果是()。 <?php $score=87; if($score>=90 && $score<=100){$grade="优秀";} if($score>=80){$grade="良好";} if($score>=70){$grade="一般";} if($score>=60){$grade="及格";} else{$grade="不及格";} echo $grade; ?>
- 1
定义一个存储5个学生成绩的数组不正确的是() A: int[] score = new int[5]; B: int score[] = new int[5]; C: double[] score; score = new double[5]; D: double[] score = new double[];
- 2
从学生成绩表SC中查询平均成绩大于60分的同学的学号和平均成绩的正确语句为: A: selectsno,avg(score)assscorefromscgroupbysnohavingavg(score)>60 B: selectsno,avg(score)assscorefromscgroupbysnowhereavg(score)>60 C: selectsno,avg(score)assscorefromscwhereavg(score)>60 D: selectsno,avg(score)assscorefromschavingavg(score)>60
- 3
查询成绩在60-80之间的学生信息,正确的语句是? A: db.students.find({"score":{$gte:60,$lte:80}}) B: db.students.find({"score":{$gte:80},{"score":{$lte:60}}}) C: db.students.find({"score":{$gte:60},{"score":{$te:80}}}) D: db.students.find({"score":{$gt:80},{"score":{$lt:60}}})
- 4
下列结构体中定义正确的是 A: record{<br/>int no;<br/>char num[16];<br/>float score;<br/>} B: struct record{<br/>int no;<br/>char num[16];<br/>float score;<br/>} C: struct record{<br/>int no;<br/>char num[16];<br/>float score;<br/>}; D: struct record{<br/>int no<br/>char num[16]<br/>float score<br/>};