28 lines
642 B
C++
28 lines
642 B
C++
#include <iostream>
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using namespace std;
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class BasicException {
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public:
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virtual string Where() { return "BasicException..."; }
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};
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class FileSysException : public BasicException {
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public:
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virtual string Where() { return "FileSysException..."; }
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};
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class FileNotFound : public FileSysException {
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public:
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virtual string Where() { return "FileNotFound..."; }
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};
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class DiskNotFound : public FileSysException {
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public:
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virtual string Where() { return "DiskNotFound..."; }
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};
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int main() {
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try {
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// ..... //程序代码
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DiskNotFound err;
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throw &err;
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} catch (BasicException *p) {
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cout << p->Where() << endl;
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}
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}
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