阅读以下C++代码，运行后的输出结果是？
#include <iostream>
using namespace std;
int main() {
try {
int num = 10;
if (num > 0) {
throw 123;
}
cout << "try块执行完毕" << endl;
} catch (double e) {
cout << "捕获double类型异常：" << e << endl;
} catch (int e) {
cout << "捕获int类型异常：" << e << endl;
} catch (...) {
cout << "捕获未知类型异常" << endl;
}
cout << "程序正常结束" << endl;
return 0;
}
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