C++小代码
#include<iostream>
#include<string>
using namespace std;
void reada(char a[5][4]);
int main(){
char a[5][4];
int i ,j,number=0;
reada(a);
for(i=0;i<5;i++)
for(j=0;j<4;j++){
if(a[i][j]!='a')
continue;
number++;
}
cout<<number<<"个a"<<endl;
return 0;
}
void reada(char a[5][4]){
int i ,j;
cout<<"输入字符串:"<<endl;
for(i=0;i<5;i++)
for(j=0;j<4;j++)
cin>>a[i][j];
}