cout.precision(4); //璁劇疆灝忔暟閮ㄥ垎鐨?浣嶆湁鏁堟暟瀛?img src ="http://www.shnenglu.com/zhenglinbo/aggbug/198145.html" width = "1" height = "1" />
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涓嬪崍鐓ф牱鐪婥++how to program錛屽姞娌癸紝瑕佸埌鏁扮粍鍜屾寚閽堜簡錛屾帴涓嬫潵灝辨槸綾葷殑娣卞叆鍓栨瀽浜嗭紝榪欏嚑澶╁湪鍔犲己鐏姏鐚涙敾榪欏潡鍦版柟錛屽搱鍝堬紝榪樻槸緙栫▼鑿滈笩錛佷笉榪囨垜鑷繁鎰熻姣斿ぇ涓閭ｆ椂鍊欑湡鐨勬湁鐐硅繘姝ヤ簡錛屾湁閭ｇcoding 鐨勬劅瑙変簡錛屽姫鍔涘涔犺繕鏄湁鏀惰幏鐨勩傞棽璇濅紤璇達紝鎶婁粖澶╀笅鍗堣嚜宸卞啓鐨勪唬鐮佸彂涓婃潵錛?
#include<iostream>
using namespace std;
int main()
{
int row,line;//瀹氫箟琛屻佸垪鏁扮殑鍙橀噺
for(row=1;row<=10;row++)
{
for(line=1;line<=row;line++)
cout<<"*";
cout<<endl;
}
cout<<"\n";//絎竴涓浘褰㈣嚦姝ゆ墦鍗板嚭鏉?/span>
for(row=10;row>=1;row--)
{
for(line=1;line<=row;line++)
cout<<"*";
cout<<endl;
}
cout<<"\n";//絎簩涓浘褰㈡墦鍗板嚭鏉?/span>
for(row=10;row>=1;row--)
{
for(line=1;line<=row;line++)
cout<<"*";
cout<<endl;
for(line=1;line<=(11-row);line++)
cout<<" ";
}
cout<<"\n";// 絎笁涓浘褰㈡墦鍗板嚭鏉?/span>
for(row=1;row<=10;row++)
{
for(line=1;line<=10-row;line++)
cout<<" ";
for(line=1;line<=row;line++)
cout<<"*";
cout<<endl;
} //鏈鍚庝竴涓浘褰紒
cout<<endl;
return 0;
}
using namespace std;
int main()
{
int row,line;//瀹氫箟琛屻佸垪鏁扮殑鍙橀噺
for(row=1;row<=10;row++)
{
for(line=1;line<=row;line++)
cout<<"*";
cout<<endl;
}
cout<<"\n";//絎竴涓浘褰㈣嚦姝ゆ墦鍗板嚭鏉?/span>
for(row=10;row>=1;row--)
{
for(line=1;line<=row;line++)
cout<<"*";
cout<<endl;
}
cout<<"\n";//絎簩涓浘褰㈡墦鍗板嚭鏉?/span>
for(row=10;row>=1;row--)
{
for(line=1;line<=row;line++)
cout<<"*";
cout<<endl;
for(line=1;line<=(11-row);line++)
cout<<" ";
}
cout<<"\n";// 絎笁涓浘褰㈡墦鍗板嚭鏉?/span>
for(row=1;row<=10;row++)
{
for(line=1;line<=10-row;line++)
cout<<" ";
for(line=1;line<=row;line++)
cout<<"*";
cout<<endl;
} //鏈鍚庝竴涓浘褰紒
cout<<endl;
return 0;
}
紼嬪簭榪愯緇撴灉
錛?br />
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璇風湅涓涓嬩竴渚嬶細
璇ョ▼搴忚姹傝緭鍏ラ暱搴︼紝鐒跺悗杈撳嚭涓涓洓鏉¤竟閮藉甫鐩稿悓鏁伴噺鏄熷彿鐨勭煩褰€?
#include<iostream>using namespace std;int main()
{
int side,rowPosition,size; cout<<"input the square side: ";//杈撳叆鐭╁艦鐨勫搴?/span> cin>>side; size=side;//浣塊暱瀹界殑杈規墍甯︽槦鍙鋒暟閲忕浉鍚?/span> while(side>0)//鍙岄噸寰幆杈撳嚭鐭╁艦
{
rowPosition=size; while(rowPosition>0) { if(size==side||side==1||rowPosition==1||rowPosition==size) cout<<'*'<<; else cout<<' '; --rowPosition;
} cout<<'\n';//鍦ㄨ繖閲岀瓑涓琛岃嚜鐒惰緭鍑哄悗錛屽湪鍒╃敤cout<<‘\n'鍥炶濺錛岃緭鍑轟笅涓琛?/span> --side; } cout<<endl;//榪欓噷鎬葷殑寮哄埗杈撳嚭鎵鏈夎緭鍏ョ殑瀛楃 return 0; 
} 紼嬪簭榪愯鏁堟灉濡備笅鍥撅紝杈撳叆8錛?br />
濡傛灉鍦ㄧ▼搴忕殑姣忔潯cout璇彞涓姞涓?lt;<endl; 閭ｄ箞紼嬪簭榪愯鐨勬晥鏋滐紙鍥炬墍闄愶紝"end line": inserts a newline into the stream and calls flush.鏈夌渷鐣ヤ竴浜涳級濡備笅錛?br />
鍚庢敞錛氬垰鍒氬湪緇村熀鐧劇閲屾煡鍒皊td::endl鐨勫畾涔夛紝瀹冭錛?end line": inserts a newline into the stream and calls flush. 榪欏氨鏄endl鐨勫姛鑳藉氨鏄己鍒惰緭鍑哄拰鎹㈣錛岀幇鍦ㄦ噦浜嗭紝鎰熻阿鍗氬弸鐨勮鐪熸洿姝ｏ紝瀛︿範浜嗐?)
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Tonight I was studying the credit card codes, all of these was copied from my book,"C++ ——how to program".
This are the program demand:
1)Account number(an integer);
2)Balance at the begining of the month;
3)Total all items charged by this customer this month;
4)Total of all items applied to this customer's account this month;
5)Allowed credit limit.
The program should input each of these facts, calculate the new balance(=begining balance+charges-credits) and determine if the new balance exceeds the customer credit limit.
For those customers whose credit limit is exceeded, the program should display the customer's account number,credit limit,new balance and the message "Credit limit exceeded".
#include<iostream>#include<iomanip>// formatting integers and the precision of floating point valuesusing namespace std;int main(){ int accountNumber; double balance,charges,credits,limit; cout<<"Enter account number(-1 to end):" <<setiosflags(ios::fixed|ios::showpoint);// to convert data from fixed point number representation to floating point representation cin>>accountNumber; while(accountNumber!=-1) { cout<<"Enter beginning balance:"; cin>>balance; cout<<"Enter total charges: "; cin>>charges; cout<<"Enter total credits:"; cin>>credits; cout<<"Enter credit limit:"; cin>>limit; balance+=charges-credits; if(balance>limit) cout<<"Account:銆銆"<<accountNumber <<"\nCredit limit: "<<setprecision(2)<<limit //accurate to two decimal point <<"\nBalance: "<<setprecision(2)<<balance <<"\nCredit Limit Exceeded.\n"; cout<<"\nEnter account number(-1 to end): "; cin>>accountNumber; } cout<<endl; return 0;}
input -1 and the program will be ended.
]]>
class GradeBook
{
public:
void setCourseName(string name)
{
courseName=name;
}
string getCourseName()
{
return courseName;
}
GradeBook myGradeBook;
cout<<"Initial course name is: "<<myGradeBook.getCourseName()<<endl;
}
榪欏嚑琛屼唬鐮佷腑錛屽畾涔変竴涓被GradeBook錛屾垚鍛樿闂鏄庣public琛ㄧず鍦ㄨ繖涓鍙蜂箣涓嬬殑鍑芥暟錛屽嚱鏁伴兘鏄叕鍏卞彲鐩鎬簰琚皟鐢ㄧ殑銆傚垱寤篏radeBook綾葷殑瀵硅薄鏃訛紙瀵硅薄鍙互榪欐牱鍒涘緩錛欸radeBook myGradeBook; 榪欓噷myGradeBook灝辨槸綾葷殑瀵硅薄 錛夛紝璇ュ璞＄殑鏁版嵁鎴愬憳courseName琚垵濮嬪寲涓洪粯璁ょ殑絀轟覆銆備簨瀹炰笂錛屾垜浠彲鐢ㄥ畾涔変竴涓瀯閫犲嚱鏁幫紝鐢ㄤ簬綾誨璞″垱寤烘椂鐨勫垵濮嬪寲銆?br />鏋勯犲嚱鏁版槸涓縐嶇壒孌婄殑鎴愬憳鍑芥暟錛屽畾涔夋椂蹇呴』涓庣被鍚屽悕銆傚畠鍜屽叾浠栨垚鍛樺嚱鏁扮殑涓涓噸澶у樊鍒槸鏋勯犲嚱鏁頒笉鑳借繑鍥炲鹼紝閫氬父鏋勯犲嚱鏁板０鏄庝負public銆?br />
璇風湅涓涓疄渚嬶細
1 #include<iostream>
2 #include<string>
3 using namespace std;
4
5 class GradeBook //瀹氫箟綾?/span>
6 {
7 public:
8 GradeBook(string name)//瀹氫箟浜咷radeBook綾葷殑涓涓瀯閫犲嚱鏁幫紝鏈変竴涓猻tring褰㈠弬name,涓庝笅闈㈢殑褰㈠弬name鍚嶅瓧鐩稿悓錛屼絾浜掍笉騫叉壈
9 {
10 setCourseName(name);//璋冪敤鍑芥暟璧嬪鹼紝鏋勯犲嚱鏁扮殑濂藉鏄細鍙槸綆鍗曡皟鐢紝瑕佹敼鍙樻椂鍙渶瀵硅璋冪敤鍑芥暟榪涜淇敼
11 }
12
13 void setCourseName(string name)//榪欎釜鍑芥暟鐨勫艦鍙備負name
14 {
15 courseName=name;
16 }
17 string getCourseName()
18 {
19 return courseName;
20 }
21
22 void displayMessage()
23 {
24 cout<<"Welcome to the grade book for\n"<<getCourseName() //涓嬮潰鐨刴ain()鍑芥暟涓紝娌℃湁璋冪敤getCourseName()鍑芥暟
25 <<"!"<<endl;
26 }
27 private: // 縐佹湁鐨勶紝鍦ㄨ繖涓垚鍛樿闂鏄庣涔嬪悗澹版槑鐨勫彉閲忔垨鑰呭嚱鏁幫紝鍙彲浠ヨ澹版槑瀹冧滑鐨勭被鐨勬垚鍛樺嚱鏁版墍璁塊棶
28 string courseName;
29 };
30
31 int main()
32 {
33 GradeBook gradeBook1("CS101 Introduction to C++ Programming"); //鍒涘緩綾葷殑瀵硅薄,騫舵妸瀹炲弬璧嬩簣褰㈠弬name
34 GradeBook gradeBook2("CS102 Data Structures in C++");
35
36 cout<<"gradeBook1 created for course: "<<gradeBook1.getCourseName() //璋冪敤綾葷殑鎴愬憳鍑芥暟getCourseName()錛屽垵濮嬪寲綾葷殑瀵硅薄
37 <<"\ngradeBook2 created for course: "<<gradeBook2.getCourseName()<<endl;
38 }
39
40
2 #include<string>
3 using namespace std;
4
5 class GradeBook //瀹氫箟綾?/span>
6 {
7 public:
8 GradeBook(string name)//瀹氫箟浜咷radeBook綾葷殑涓涓瀯閫犲嚱鏁幫紝鏈変竴涓猻tring褰㈠弬name,涓庝笅闈㈢殑褰㈠弬name鍚嶅瓧鐩稿悓錛屼絾浜掍笉騫叉壈
9 {
10 setCourseName(name);//璋冪敤鍑芥暟璧嬪鹼紝鏋勯犲嚱鏁扮殑濂藉鏄細鍙槸綆鍗曡皟鐢紝瑕佹敼鍙樻椂鍙渶瀵硅璋冪敤鍑芥暟榪涜淇敼
11 }
12
13 void setCourseName(string name)//榪欎釜鍑芥暟鐨勫艦鍙備負name
14 {
15 courseName=name;
16 }
17 string getCourseName()
18 {
19 return courseName;
20 }
21
22 void displayMessage()
23 {
24 cout<<"Welcome to the grade book for\n"<<getCourseName() //涓嬮潰鐨刴ain()鍑芥暟涓紝娌℃湁璋冪敤getCourseName()鍑芥暟
25 <<"!"<<endl;
26 }
27 private: // 縐佹湁鐨勶紝鍦ㄨ繖涓垚鍛樿闂鏄庣涔嬪悗澹版槑鐨勫彉閲忔垨鑰呭嚱鏁幫紝鍙彲浠ヨ澹版槑瀹冧滑鐨勭被鐨勬垚鍛樺嚱鏁版墍璁塊棶
28 string courseName;
29 };
30
31 int main()
32 {
33 GradeBook gradeBook1("CS101 Introduction to C++ Programming"); //鍒涘緩綾葷殑瀵硅薄,騫舵妸瀹炲弬璧嬩簣褰㈠弬name
34 GradeBook gradeBook2("CS102 Data Structures in C++");
35
36 cout<<"gradeBook1 created for course: "<<gradeBook1.getCourseName() //璋冪敤綾葷殑鎴愬憳鍑芥暟getCourseName()錛屽垵濮嬪寲綾葷殑瀵硅薄
37 <<"\ngradeBook2 created for course: "<<gradeBook2.getCourseName()<<endl;
38 }
39
40
PS錛?錛変負綾繪彁渚涢粯璁ゆ瀯閫犲嚱鏁扮殑涓ょ鏂規硶錛?font color="#000000" face="Verdana">①緙栬瘧鍣ㄩ殣寮忓湴鍦ㄦ病鏈夊畾涔夋瀯閫犲嚱鏁扮殑綾諱腑鍒涘緩涓涓粯璁ょ殑鏋勯犲嚱鏁幫紝榪欐牱鐨勯粯璁ゆ瀯閫犲嚱鏁頒笉鍒濆鍖栫被鐨勬暟鎹垚鍛橈紝鑰屾槸璋冪敤鍏朵粬綾葷殑瀵硅薄鐨勬瘡涓暟鎹垚鍛樼殑榛樿鏋勯犲嚱鏁般傛病鏈夊垵濮嬪寲鐨勫彉閲忛氬父鍖呭惈“鍨冨溇”鍊箋?br /> ②紼嬪簭鍛樻樉寮忓畾涔変竴涓笉鎺ュ彈瀹炲弬鐨勬瀯閫犲嚱鏁般?br />
2錛夐櫎闈炴病鏈夊繀瑕佸垵濮嬪寲綾葷殑鏁版嵁鎴愬憳錛堝嚑涔庝笉鍙兘錛夛紝鍚﹀垯璇鋒彁渚涙瀯閫犲嚱鏁幫紝榪欐牱鍙互淇濊瘉褰撶被鐨勬瘡涓涓柊瀵硅薄琚垱寤烘椂錛岀被鐨勬暟鎹垚鍛橀兘鐢ㄦ湁鎰忎箟鐨勫艱繘琛屼簡鍒濆鍖栥?br />
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#include<iostream>int main(){ int number1; int number2; int sum; std::cout<<"Enter first integer:\n"; std::cin>>number1; std::cout<<"Enter second integer:\n"; std::cin>>number2; sum=number1+number2; std::cout<<"Sum is"<<sum<<std::endl;//杈撳嚭鍙橀噺sum錛?br /> return 0;}std::cout鏄爣鍑嗚緭鍑烘祦瀵硅薄錛岄氬父“榪炴帴”鍒板睆騫曪紱鍙屽皷鎷彿<<榪愮畻絎︾О涓烘祦鎻掑叆榪愮畻絎︼紝鏄劇ず杈撳叆鐨勫鹼紱
std::cin鏄緭鍏ユ祦瀵硅薄錛屾祦鎻愬彇榪愮畻絎?gt;>鏄潵鑾峰彇閿洏杈撳叆鐨勫箋?br />std::endl杈撳嚭涓涓崲琛岀錛岀劧鍚?#8220;鍒鋒柊杈撳嚭緙撳啿”銆傜畝鍗曟潵璇達紝鍦ㄤ竴浜涚郴緇熶腑錛岃緭鍑哄湪鏈哄櫒涓Н瀛橈紝鐩村埌縐瘡鍒?#8220;鍊煎緱”杈撳嚭鍒板睆騫曚笂涓烘錛涜宻td::endl 鍒欏己鍒舵樉紺烘墍鏈夌Н瀛樼殑杈撳嚭銆?br />
榪愮畻絎︾殑浼樺厛綰ц鍒欍?br />1錛夊渾鎷彿鍏鋒湁鏈楂樼殑浼樺厛綰э紱
2錛夋帴涓嬫潵鏄箻娉曘侀櫎娉曞拰姹傛ā榪愮畻錛?錛夈?br />3錛夋渶鍚庢槸鍔犳硶鍜屽噺娉曡繍綆椼傚姞娉曞拰鍑忔硶鍏鋒湁鐩稿悓鐨勮繍綆楃駭銆?br />
澹版槑錛歶sing std::cout;鏄竴涓猽sing 澹版槑錛屽畠鍙互娑堥櫎閲嶅浣跨敤std::鍓嶇紑鐨勯渶瑕併?br />鏇村紼嬪簭鍛樼敤using namespace std;浣跨▼搴忓彲浠ヤ嬌鐢ㄧ▼搴忓寘鍚殑浠諱綍鏍囧噯鐨凜++澶存枃浠朵腑鐨勬墍鏈夊悕瀛楋紙濡俿td)銆?br />
渚嬪瓙錛氱紪鍐欎竴涓畬鏁寸殑紼嬪簭錛岃綆楀茍鏄劇ず涓変釜鏁存暟鐨勪箻縐?
#include<iostream>
using namespace std;
int main()
{
int x;
int y;
int z;
int result;
cout<<"input three numbers:\n";
cin>>x>>y>>z;
result=x*y*z;
cout<<"The product is "<<result<<endl;
return 0;
}
]]>