c++-primer-plus(第六版)第二至第六章课后编程练习全部答案

patron *ps=new patron[num];

for(int i=0;i

cout<<\请输入第\位捐款人的名字：\ getline(cin,ps[i].name);

cout<<\请输入第\位捐款人捐款的数目：\ cin>>ps[i].money; cin.get(); }

cout<<\ for(int i=0;i10000) {

cout<

if(temp==0) cout<<\

cout<<\ for(int i=0;i

cout<

if(temp==0) cout<<\

delete [] ps; return 0; }

//ex.6.7

#include #include

int main() {

using namespace std;

int vowel=0,consonant=0,other=0; char word[15];

cout<<\ while(cin>>word) {

if(isalpha(word[0])) {

if(word[0]=='q'&&strlen(word)==1) break;

else if(word[0]=='a'||word[0]=='i'|| word[0]=='u'||word[0]=='e'||word[0]=='o') ++vowel; else

++consonant; } else ++other; }

cout<

cout<

//ex.6.8

#include #include #include

int main() {

using namespace std;

char ch; int sum=0;

ifstream inFile; inFile.open(\ if(!inFile.is_open())

{

cout<<\ cout<<\ exit(EXIT_FAILURE); }

inFile>>ch;

while(inFile.good()) {

++sum; inFile>>ch; }

if(inFile.eof())

cout<<\ else if(inFile.fail())

cout<<\ else

cout<<\

cout<<\总共有\个字符在这个文件中。\ return 0; }

//ex.6.9

#include #include #include

struct member {

char name[20]; double donation; };

int main() {

using namespace std; int num,count1=0,count2=0; ifstream fin; char file[20];

cout<<\

cin.getline(file,20); fin.open(file); if(!fin.is_open()) {

cout<<\ cout<<\ exit(EXIT_FAILURE); }

fin>>num; fin.get();

member *pd=new member[num]; for(int i=0;i

fin.getline(pd[i].name,20); fin>>pd[i].donation; fin.get(); }

cout<<\ for(int i=0;i=10000) {

cout<

if(count1==0) cout<<\ cout<<\ for(int i=0;i

cout<

if(count2==0) cout<<\

delete [] pd; return 0; }