A.9
B.3
C.0
D.有语法错误
A.9
B.3
C.0
D.有语法错误
include<iostream.h>
void main()
{
int a; cin>>a;
if(a>50) cout<<a;
if(a>40) cout<<a;
if(a>30) cout<<a;
}
include <iostream. h>
void main() {
int n1, n2;
cin>>n2;
while (n2!=0) {
n1=n2%10;
n2=n1/10;
cout<<rd<< ","
}
}
#include(iostream.h)
voidmain()
(inta,b,k;
cin$amp;>amp;$gt;a$amp;>amp;$gt;b;
k=a:
if(a
k=a%b;
else
k=b%a:
cout((k$amp;A.5
B.3
C.2
D.0
include<iostream.h>
include<string.h>
void main(){
char*str,ch;
int count=0,pos;
cin>>str>>ch;
pos=strlen(str)-1;
while(pos>=0){
if((str[pos])=ch)count++;
pos--;
}
cout<<"count="<<count;
}
void main()
{
char ch;
scanf("%3c",&ch);
printf("%c",ch);
}
如果从键盘上输入
abc<回车>
则程序的运行结果是___。
A、32
B、3
C、2
D、23
B、x=7
C、x=8
D、x=0
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