union a {int a_int1;double a_double;int a_int2;};typedef struct{a a1;char y;} b;class c
union a {
int a_int1;
double a_double;
int a_int2;
};
typedef struct
{
a a1;
char y;
} b;
class c
{
double c_double;
b b1;
a a2;
};
输出cout<<sizeof(c)<<endl;的结果?
union a {
int a_int1;
double a_double;
int a_int2;
};
typedef struct
{
a a1;
char y;
} b;
class c
{
double c_double;
b b1;
a a2;
};
输出cout<<sizeof(c)<<endl;的结果?
A、typedef int interger
B、struct {int a ; int b} a;
C、union {int a ; int b} ;
D、union {int a ; int b} ;
有定义
union score
{int a;
float b;
char c
};
则sizeof(union score)=______。
变量a所占内存字节数是______。 union U { char st[4]; int i; long 1; }; struct A { int c; union U u; }a;
A.4
B.5
C.6
D.8
A.4
B.6
C.5
D.8
A.4
B.5
C.6
D.8 union U { char st[4]; int i; long l; }; Struct A{ int c; union U u; }a;
变量a所占的内存字节数是______。 union U { char st[4]; int i; long 1; }; struct A { int c; union U u; }a;
A.4
B.5
C.6
D.8
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