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若有以下定义,则对变量student1中“生日”的正确赋值方式是()。 struct student { int num; char name[20], sex; struct { int year, month, day; } birthday; } ; struct student student1;
A.student1.birthday.year = 2003; student1.birthday.month = 5; student1.birthday.day = 1;#B.year = 2003; month = 5; day = 1;#C.birthday.year = 2003; birthday.month = 5; birthday.day = 1;#D.student1.year = 2003; student1.month = 5; student1.day = 1;参考答案和解析
ABC
更多 “若有以下定义,则对变量student1中“生日”的正确赋值方式是()。 struct student { int num; char name[20], sex; struct { int year, month, day; } birthday; } ; struct student student1;A.student1.birthday.year = 2003; student1.birthday.month = 5; student1.birthday.day = 1;#B.year = 2003; month = 5; day = 1;#C.birthday.year = 2003; birthday.month = 5; birthday.day = 1;#D.student1.year = 2003; student1.month = 5; student1.day = 1;” 相关考题
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( 38 )有以下定义和语句struct workers{ int num;char name[20];char c;struct{ int day; int month; int year; } s;} ;struct workers w,*pw;pw = w;能给 w 中 year 成员赋 1980 的语句是A ) *pw.year = 198O;B ) w.year=1980;C ) pw-year=1980;D ) w.s.year=1980;
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有以下说明和定义语句 struct student { int age;char num[8]; struct student stu[3]={{20,"200401"},{21,"200402"},{19,"200403"}}; struct student *p=stu;}; 以下选项中引用结构体变量成员的表达式错误的是A.(p++)->numB.p->numC.(*p).numD.stu[3].age
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若有以下定义的语句 struct student {int age; int num;}; struct student stu[3]={{1001,20},{1002,19},{1003,21}}; main() {stmct student *p; p=stu; …} 则以下不正确的引用是A.(p++)->numB.p++C.(*p).numD.P=stu.age.
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已知学生记录描述为 struct student { int no; char name[20]; char sex; struct { int year; int month; int day; } birth; }; struct student s;变量s中的“生日”应是“1985年4月4日”,下列对“生日”的正确赋值方式是______。A.year=1985;month=4;day=4;B.birth.year=1985;birth.month=4;birth.day=4;C.s.year=1985;s.month=4;s.day=4;D.s.birth.year=1985;s.birth.month=4;s.birth,day=4;
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已知学生记录描述为:struct student{ int no;char name[20],sex;struct{ int year,month,day;} birth;};struct student s;设变量s中的"生日"是"1984年11月12日",对"birth"正确赋值的程序段是A.year=1984;month=11;day=12;B.s.year=1984;s.month=11;s.day=12;C.birth.year=1984;birth.month=11;birth.day=12;D.s.birth.year=1984;s.birth.month=11;s.birth.day=12;
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若有以下定义的语句: struct student { int age; int num;}; struct student stu[3]={{1001,20},{1002,19},{1003,21}}; main() { struct student *p; p=stu; …} 则以下不正确的引用是( )。A.(p++)->numB.p++C.(*p).numD.P=stu.age.
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下面结构体的定义语句中,不正确的是______。A.structdate { int month; int day; int year; } Struct date datel;B.stmctdate { intmonth; int day; int year; } datel;C.struct { int month; int day; int year; } date 1;D.#define DATE stmct date DATE { int month; int day; int year; }datel;
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下列对结构及其变量定义错误的是( )。A.struct My StructB.struct MyStruct{ {int num; int num;char ch; char ch;} }My;C.strutD.struct{ {int num; int num;char ch; char ch;}My; };
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有以下定义和语句: struct students {int num;char name[20];char c; struct {int grade1;int grade2;}s; }; struct students w,*pw; *pw=w; 下列赋值语句不正确的是( )。A.w.num=1002;B.w.grade1=85;C.pw->num=1002;D.w.s.grade2=85;
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若定义下列结构体,结构体变量p的出生年份赋值正确的语句是( )。 struct st { int x; int y; int z; } struct worker { char name[20]; char sex; struct st birth; }p;A.x=1987B.birth.x=1987;C.p.birth.x=1987;D.p.x=1987;
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设定义下列结构体,结构体变量p的出生年份赋值正确的语句是( )。Struct st{ int x;inty;int z;}Struct worker{ char name[20];char sex;struct st birth;}p;A.x=1987B.birth.x=1987;C.p.birth.x=1987;D.p.x=1987;
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有如下说明和定义语句: struct student { int age; char num{8};}; struct student stu[3]={{20,"200401"},{21,"200402"),{19,"200403"}}; struct student *p=stu; 以下选项中引用结构体变量成员的表达式错误的是( )。A.(p++)->numB.p->numC.(*p).numD.stu[3].age
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设定义下列结构体,结构体变量p的出生年份赋值正确的语句是( )。 stmct st { int x; int y; int z; } struct worker { char name[20]; char sex; struct st birth; }p;A.x=1987B.birth.x=1987;C.p.birth.x=1987;D.p.x=1987;
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有以下说明和定义语句struct student{ int age; char num[8];};struct student stu[3]={{20,"200401"},{21,"200402"},{10\9,"200403"}};struct student *p=stu;以下选项中引用结构体变量成员的表达式错误的是A.(p++)-num B.p-num C.(*p).num D.stu[3].age
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有以下说明和定义语句:struct student{int age; char num[8] ;};struct student stu [3] = { { 20, "200401" } , {21, "200402" } , {19, "200403" } };stract student * p = stu;以下选项中引用结构体变量成员的表达错误的是( )。A.(p++) ->numB.p- >numC.( *p).numD.stu[3].age
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某C语言结构体的定义如下。 struct date { int year, month, day; }; struct worklist { char name[20]; char sex; struct date birthday; }person; 若对变量person的出生年份进行赋值,正确的赋值语句是(33)。A.year=1976B.birthday. year=1976C.person. year=1976D.person. birthday. year=1976
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下列关于结构型变量的定义语句中,错误的是( )A.typedef struct CCCB.define GGG struct { char name[20];GGG CCC { char name[20]; int age; int age; }GGG; }; GGG abc ; GGG CCC abc;C.structD.struct { char name[20]; { char name[20]; int age; int age; }ccc; }abc; CCC abc;
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下列对结构及其变量定义错误的是( )。A.struct My Struct { int num; char ch; }B.struct MyStruct { int num; char ch; }My;C.strut { int num; char ch; }My;D.struct { int num; char ch; };
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若有定义和语句:struct student { int num; char name[10]; float score;} s[5]={{1,"lili",98.5},{9,"xiaohua",66}},*p=s;printf("%d",*p++);输出结果是1。( )此题为判断题(对,错)。
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假设以下代码运行环境为32位系统,其中,__attribute__((packed))的作用是告诉编译器取消结构在编译过程中的优化对齐,按照实际占用字节数进行对齐。代码段1:struct student1{char name[10];long sno;char sex;float score[4];}__attribute__((packed))*p1,a1,b1;代码段2:union student2{char name[10];long sno;char sex;float score[4];}*p2,a2,b2;sizeof(struct student1)、sizeof(union student2)的结果分别是______。A.248和128
B.31和31
C.31和16
D.16和16
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若有以下说明和语句: struct student{ int age; int num; }std, *p; p=std; 则下面对该结构体变量std中成员age的引用方式错误的是()。 A、std.ageB、*p.ageC、(*p).ageD、p-age
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有下列语句: struct Birthday{public int year; public int month; public int day;}; struct Student{ int no; string name; int age; public Birthday bir; }; …… Student Stu; 如果要把Stu的出生年份赋值为1988,正确的语句是()A、 Stu.bir.year=1988;B、 Stu.year=1988;C、 Stu. Birthday.year=1988;D、 Student. Birthday.year=1988;
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数据结构里,struct student { char name[20]; char sex[10]; int age; int score; }; 定义结构体后,定义变量、数组赋值正确的是()。A、struct student s={"张三","男",18,100};B、struct student stu[3]={{"张三","男",18,100},{"李四","男",19,90},{"王五","男",23,97}};C、struct student s={"李四";"女";18;100};D、struct student stu[3]={{"张三",18,"男",100},{"李四",19,"男",90},{"王五",23,"男",97}};
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单选题若有以下说明和语句: struct student{ int age; int num; }std, *p; p=std; 则下面对该结构体变量std中成员age的引用方式错误的是()。A
std.ageB
*p.ageC
(*p).ageD
p-age
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单选题以下scanf函数调用语句中对结构体变量成员的不正确引用的是()。 struct node{ char name[20]; int age; int sex; }student[5],*p; p=student;A
scanf(“%s”,student[0].name);B
scanf(“%d”,student[0].age);C
scanf(“%d”,(p-sex));D
scanf(“%d”,p-age);
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多选题数据结构里,struct student { char name[20]; char sex[10]; int age; int score; }; 定义结构体后,定义变量、数组赋值正确的是()。Astruct student s={张三,男,18,100};Bstruct student stu[3]={{张三,男,18,100},{李四,男,19,90},{王五,男,23,97}};Cstruct student s={李四;女;18;100};Dstruct student stu[3]={{张三,18,男,100},{李四,19,男,90},{王五,23,男,97}};
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