public class TestFactorial {
public static void main(String[] args) {
//求N的阶乘
long result=factorial(5);
System.out.println(result);
}
private static long factorial(int n) {
if(n==1){
return 1;
}
return n*factorial(n-1);
}
// 求n的阶乘
}
D:javajdkjdk-14.0.2binjava.exe "-javaagent:D:ideaIC-2021.2.2IDEAIntelliJ IDEA 2020.1.1libidea_rt.jar=49644:D:ideaIC-2021.2.2IDEAIntelliJ IDEA 2020.1.1bin" -Dfile.encoding=UTF-8 -classpath E:ideaProjectitcastoutproductiondata_structure TestFactorial
120
Process finished with exit code 0
