作业帮C++里的flag是什么意思?Status InputString(unsigned char *str) {int flag=0;unsigned char ch;str[0]=0;//接受输入while((ch=getchar())!='\n') {if(flag==1) {flag=2;break;}str[0]++;if(str[0]==255) flag=1;str[str[0]]=ch;}if(flag==2) {ErrorTip(Over
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 01:31:14
![C++里的flag是什么意思?Status InputString(unsigned char *str) {int flag=0;unsigned char ch;str[0]=0;//接受输入while((ch=getchar())!='\n') {if(flag==1) {flag=2;break;}str[0]++;if(str[0]==255) flag=1;str[str[0]]=ch;}if(flag==2) {ErrorTip(Over](/uploads/image/z/8552259-27-9.jpg?t=C%2B%2B%E9%87%8C%E7%9A%84flag%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%3FStatus+InputString%28unsigned+char+%2Astr%29+%7Bint+flag%3D0%3Bunsigned+char+ch%3Bstr%5B0%5D%3D0%3B%2F%2F%E6%8E%A5%E5%8F%97%E8%BE%93%E5%85%A5while%28%28ch%3Dgetchar%28%29%29%21%3D%27%5Cn%27%29+%7Bif%28flag%3D%3D1%29+%7Bflag%3D2%3Bbreak%3B%7Dstr%5B0%5D%2B%2B%3Bif%28str%5B0%5D%3D%3D255%29+flag%3D1%3Bstr%5Bstr%5B0%5D%5D%3Dch%3B%7Dif%28flag%3D%3D2%29+%7BErrorTip%28Over)
C++里的flag是什么意思?Status InputString(unsigned char *str) {int flag=0;unsigned char ch;str[0]=0;//接受输入while((ch=getchar())!='\n') {if(flag==1) {flag=2;break;}str[0]++;if(str[0]==255) flag=1;str[str[0]]=ch;}if(flag==2) {ErrorTip(Over
C++里的flag是什么意思?
Status InputString(unsigned char *str) {
int flag=0;
unsigned char ch;
str[0]=0;
//接受输入
while((ch=getchar())!='\n') {
if(flag==1) {flag=2;break;}
str[0]++;
if(str[0]==255) flag=1;
str[str[0]]=ch;
}
if(flag==2) {
ErrorTip(OverLen);
return ERROR;
}
str[str[0]+1]='\0';
return OK;
}
里面的flag是什么意思?代表是?
C++里的flag是什么意思?Status InputString(unsigned char *str) {int flag=0;unsigned char ch;str[0]=0;//接受输入while((ch=getchar())!='\n') {if(flag==1) {flag=2;break;}str[0]++;if(str[0]==255) flag=1;str[str[0]]=ch;}if(flag==2) {ErrorTip(Over
就是一个整型变量,和int i没区别,你可能要问的在程序里这么用是什么意思,这是个编程的小技巧,就是当满足一些条件是,把flag设置个状态,然后在后面检查这个状态,做相应的处理,要是不明白我给你做点注释吧
Status InputString(unsigned char *str) {
int flag=0; //开始把这个状态设置为0
unsigned char ch;
str[0]=0;
//接受输入
while((ch=getchar())!='\n') {
if(flag==1) {flag=2;break;} //当状态为1的时候,又设置成2
str[0]++;
if(str[0]==255) flag=1; //当满足条件是,设置flag=1
str[str[0]]=ch;
}
if(flag==2) { //检查flag状态,做相应处理
ErrorTip(OverLen);
return ERROR;
}
str[str[0]+1]='\0';
return OK;
}