C++ 用奇怪的符号代替字符串打印出来
我试着用这个简单的程序来模拟在游戏中打开一个箱子。但是，当我运行它时（先输入1、2或3，然后输入一个大数字，如100），它几乎可以正确地打印所有内容，但有时（100次中的一次或两次），它会打印奇怪的符号，而不是它应该打印的字符串。为什么呢C++ 用奇怪的符号代替字符串打印出来,c++,string,C++,String,我试着用这个简单的程序来模拟在游戏中打开一个箱子。但是，当我运行它时（先输入1、2或3，然后输入一个大数字，如100），它几乎可以正确地打印所有内容，但有时（100次中的一次或两次），它会打印奇怪的符号，而不是它应该打印的字符串。为什么呢 #include <iostream> #include <cstdlib> #include <ctime> #include <string> #include <windows.h> usin
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <string>
#include <windows.h>
using namespace std;
//This function is only here to make retrieving random numbers more pretty.
int getrand(int min, int max);
//This function will return what level of rarity the item is as a string.
string getrare();
//This function will return the certification of the item as a string.
string getcert();
//This function will return the crate being opened to a string, and will error check.
string cratePrompt();
//This function will return the specific item received from a specific crate.
string getitem(string crateNum);
int rareCount=0;
int veryrareCount=0;
int importCount=0;
int exoticCount=0;
int blackmarketCount=0;
int certCount=0;
int main(){
unsigned seed;
//This group of text here is to get a seed for randomness.
seed=time(0);
srand(seed);
//This is where the magic happens.
int count=0;
int crateQuantity;
string certTest;
string crateChosen;
crateChosen=(cratePrompt());
cout<<"\nHow many crates do you want to open?\n\n";
cin>>crateQuantity;
cout<<endl;
string itemActual;
while(count<crateQuantity){
certTest=getcert();
if (certTest!="Null"){
cout<<certTest<<" ";
}
cout<<getitem(crateChosen);
cout<<endl;
count++;
}
cout<<"\n\n\nYou got "<<rareCount<<" Rare items!\n";
cout<<"You got "<<veryrareCount<<" Very Rare items!\n";
cout<<"You got "<<importCount<<" Import items!\n";
cout<<"You got "<<exoticCount<<" Exotic items!\n";
cout<<"You got "<<blackmarketCount<<" Black Market items!\n\n";
cout<<certCount<<" of the items were certified!";
}
int getrand(int min, int max){
return ((rand()%(max-min+1))+min);
}
string getrare(){
int rando=(getrand(1,10000));
if ((rando>=1)&&(rando<=5472)){
rareCount++;
return "Rare";
}
else if ((rando>=5473)&&(rando<=8264)){
veryrareCount++;
return "Very Rare";
}
else if ((rando>=8265)&&(rando<=9476)){
importCount++;
return "Import";
}
else if ((rando>=9477)&&(rando<=9868)){
exoticCount++;
return "Exotic";
}
else if ((rando>=9869)&&(rando<=10000)){
blackmarketCount++;
return "Black Market";
}
else{
return "An error has happened";
}
}
string getcert(){
int iscert=getrand(1,100);
int whichcert=getrand(1,15);
if ((iscert>=16)&&(iscert<=100)){
return "Null";
}
else if ((iscert>=1)&&(iscert<=15)){
certCount++;
if (whichcert==1){
return "[Acrobat]";
}
if (whichcert==2){
return "[Aviator]";
}
if (whichcert==3){
return "[Goalkeeper]";
}
if (whichcert==4){
return "[Guardian]";
}
if (whichcert==5){
return "[Juggler]";
}
if (whichcert==6){
return "[Paragon]";
}
if (whichcert==7){
return "[Playmaker]";
}
if (whichcert==8){
return "[Scorer]";
}
if (whichcert==9){
return "[Show-Off]";
}
if (whichcert==10){
return "[Sniper]";
}
if (whichcert==11){
return "[Striker]";
}
if (whichcert==12){
return "[Sweeper]";
}
if (whichcert==13){
return "[Tactician]";
}
if (whichcert==14){
return "[Turtle]";
}
if (whichcert==15){
return "[Victor]";
}
}
else{
return "An error has happened";
}
}
string cratePrompt(){
string answer;
bool valid=0;
while (valid==0){
cout<<"Which crate do you want to open?\n\n";
cin>>answer;
if ((answer=="1")||(answer=="c1")||(answer=="cc1")||(answer=="C1")||(answer=="CC1")){
return "CC1";
}
else if ((answer=="2")||(answer=="c2")||(answer=="cc2")||(answer=="C2")||(answer=="CC2")){
return "CC2";
}
else if ((answer=="3")||(answer=="c3")||(answer=="cc3")||(answer=="C3")||(answer=="CC3")){
return "CC3";
}
else if ((answer=="4")||(answer=="c4")||(answer=="cc4")||(answer=="C4")||(answer=="CC4")){
return "CC4";
}
else{
cout<<"Please enter a valid option (1, 2, 3, or 4)\n";
}
}
}
string getitem(string crateNum){
string rarity = getrare();
//(Rarity)Select is used to select exactly which item they will get out of the possibilities.
int BMSelect= getrand(1,6);
int ESelect= getrand(1,2);
int ISelect= getrand(1,3);
int VRSelect= getrand(1,4);
int RSelect= getrand(1,5);
if (crateNum=="CC1"){
if (rarity=="Rare"){
if(RSelect==1){
return "(Takumi) Combo";
}
else if(RSelect==2){
return "(Breakout) Vice";
}
else if(RSelect==3){
return "(Dominus) Pollo Caliente";
}
else if(RSelect==4){
return "(Dominus) Arcana";
}
else if(RSelect==5){
return "(Breakout) Shibuya";
}
}
else if (rarity=="Very Rare"){
if (VRSelect==1){
return "(Takumi) Anubis";
}
else if (VRSelect==2){
return "(Breakout) Dot Matrix";
}
else if (VRSelect==3){
return "(Dominus) Snakeskin";
}
else if (VRSelect==4){
return "Chakrams";
}
}
else if (rarity=="Import"){
if (ISelect==1){
return "Dominus GT";
}
else if (ISelect==2){
return "Trinity";
}
else if (ISelect==3){
return "Takumi RX-T";
}
}
else if (rarity=="Exotic"){
if (ESelect==1){
return "Photons";
}
else if (ESelect==1){
return "Loopers";
}
}
else if (rarity=="Black Market"){
if (BMSelect==1){
return "Biomass";
}
else if (BMSelect==2){
return "Heatwave";
}
else if (BMSelect==3){
return "Hexed";
}
else if (BMSelect==4){
return "Slipstream";
}
else if (BMSelect==5){
return "Parallax";
}
else if (BMSelect==6){
return "Labyrinth";
}
}
else{
cout<<"AN ERROR HAS OCCURED";
}
}
if (crateNum=="CC2"){
if (rarity=="Rare"){
if(RSelect==1){
return "(Octane) Dragon Lord";
}
if(RSelect==2){
return "(Venom) Nine Lives";
}
if(RSelect==3){
return "(Road Hog) Carbonated";
}
if(RSelect==4){
return "(Takumi) Whizzle";
}
if(RSelect==5){
return "(Merc) Narwhal";
}
}
else if (rarity=="Very Rare"){
if (VRSelect==1){
return "(Octane) Distortion";
}
if (VRSelect==2){
return "(Merc) Warlock";
}
if (VRSelect==3){
return "Polygonal";
}
if (VRSelect==4){
return "(X-Devil) Snakeskin";
}
}
else if (rarity=="Import"){
if (ISelect==1){
return "X-Devil Mk2";
}
if (ISelect==2){
return "Road Hog XL";
}
if (ISelect==3){
return "Pixel Fire";
}
}
else if (rarity=="Exotic"){
if (ESelect==1){
return "Lightnings";
}
if (ESelect==1){
return "Lobos";
}
}
else if (rarity=="Black Market"){
if (BMSelect==1){
return "Biomass";
}
if (BMSelect==2){
return "Heatwave";
}
if (BMSelect==3){
return "Hexed";
}
if (BMSelect==4){
return "Slipstream";
}
if (BMSelect==5){
return "Parallax";
}
if (BMSelect==6){
return "Labyrinth";
}
}
else{
cout<<"AN ERROR HAS OCCURED";
}
}
if (crateNum=="CC3"){
if (rarity=="Rare"){
if(RSelect==1){
return "(Breakout) Falchion";
}
if(RSelect==2){
return "(Breakout) Turbo";
}
if(RSelect==3){
return "(Dominus) Mondo";
}
if(RSelect==4){
return "(Octane) Shisa";
}
if(RSelect==5){
return "(Masamune) Oni";
}
}
else if (rarity=="Very Rare"){
if (VRSelect==1){
return "(Takumi) Distortion";
}
if (VRSelect==2){
return "(Breakout) Snakeskin";
}
if (VRSelect==3){
return "Troikas";
}
if (VRSelect==4){
return "(Octane) MG-88";
}
}
else if (rarity=="Import"){
if (ISelect==1){
return "Breakout Type-S";
}
if (ISelect==2){
return "Hypernova";
}
if (ISelect==3){
return "Dark Matter";
}
}
else if (rarity=="Exotic"){
if (ESelect==1){
return "Pulsus";
}
if (ESelect==1){
return "Discotheques";
}
}
else if (rarity=="Black Market"){
if (BMSelect==1){
return "Biomass";
}
if (BMSelect==2){
return "Heatwave";
}
if (BMSelect==3){
return "Hexed";
}
if (BMSelect==4){
return "Slipstream";
}
if (BMSelect==5){
return "Parallax";
}
if (BMSelect==6){
return "Labyrinth";
}
}
else{
cout<<"AN ERROR HAS OCCURED";
}
}
if (crateNum=="CC4"){
if (rarity=="Rare"){
if(RSelect==1){
return "(Octane) Dragon Lord";
}
if(RSelect==2){
return "(Venom) Nine Lives";
}
if(RSelect==3){
return "(Road Hog) Carbonated";
}
if(RSelect==4){
return "(Takumi) Whizzle";
}
if(RSelect==5){
return "(Merc) Narwhal";
}
}
else if (rarity=="Very Rare"){
if (VRSelect==1){
return "(Octane) Distortion";
}
if (VRSelect==2){
return "(Merc) Warlock";
}
if (VRSelect==3){
return "Polygonal";
}
if (VRSelect==4){
return "(X-Devil) Snakeskin";
}
}
else if (rarity=="Import"){
if (ISelect==1){
return "X-Devil Mk2";
}
if (ISelect==2){
return "Road Hog XL";
}
if (ISelect==3){
return "Pixel Fire";
}
}
else if (rarity=="Exotic"){
if (ESelect==1){
return "Lightnings";
}
if (ESelect==1){
return "Lobos";
}
}
else if (rarity=="Black Market"){
if (BMSelect==1){
return "Biomass";
}
if (BMSelect==2){
return "Heatwave";
}
if (BMSelect==3){
return "Hexed";
}
if (BMSelect==4){
return "Slipstream";
}
if (BMSelect==5){
return "Parallax";
}
if (BMSelect==6){
return "Labyrinth";
}
}
else{
cout<<"AN ERROR HAS OCCURED";
}
}
}
#包括
#包括
#包括
#包括
#包括
使用名称空间std；
//此函数仅用于使检索随机数更加美观。
int-getrand（int-min，int-max）；
//此函数将返回项目作为字符串的稀有级别。
字符串getrare（）；
//此函数将以字符串形式返回项目的认证。
字符串getcert（）；
//此函数将把打开的板条箱返回为字符串，并进行错误检查。
字符串提示符（）；
//此函数将返回从特定板条箱接收的特定项目。
字符串getitem（字符串clatenum）；
int-rareCount=0；
int veryrarecont=0；
int importCount=0；
int exoticCount=0；
int黑市计数=0；
int certCount=0；
int main（）{
无标记种子；
//这组文本是为了获得随机性的种子。
种子=时间（0）；
srand（种子）；
//这就是魔法发生的地方。
整数计数=0；
整箱数量；
字符串测试；
选择字符串；
所选板条箱=（板条箱提示（））；
定量；
CUT我马上看到，您有返回字符串的功能，可以返回而不返回。这导致C++中值得注意的“未定义行为”。
<>注意，在C++中退出函数范围而不返回，默认值不构成返回值。添加在上述注释中的警告应该指出它们。
在else子句中，您有
cout << "AN ERROR HAS OCCURRED";
cout什么符号？您是否尝试过使用调试器？您可以尝试查找出现问题的种子，并将该种子与srand
一起使用以获得可再现的错误。您应该尝试创建一个简短的示例。如果您使用种子505，并使用1和100的输入，则可以从底部看到一些结果。使用调试器以查找错误源。您的代码太大，无法分析。此外，如果您能向我们显示正在打印的符号，也会有所帮助。使用所有警告和调试信息（g++-Wall-Wextra-g
if using…）编译。改进您的代码，直到没有警告。使用调试器。。。
#include <assert.h>
...
string get_stuff() {
if (something) {
...
} else if (something_els) {
...
} else {
assert(!"Default case hit");
}
}