Javaç¼ç¨ï¼ååºæ±nçé¶ä¹çæ¹æ³ï¼å¹¶ç®åº1å°7çé¶ä¹çåæ¹æ³ï¼
å
ç¼åæ±é¶ä¹çæ¹æ³ï¼åéè¿for循ç¯è®¡ç®1å°7çé¶ä¹çåã
å
·ä½å®ç°ï¼
public class Test {
public static void main(String[] args) {
int sum = 0; //ä¿åé¶ä¹çå
for(int i = 1;i<=7;i++)
sum += factorial(i);
System.out.println(sum);
}
// æ±é¶ä¹æ¹æ³ï¼ä¼ å
¥ä¸ä¸ªæ´æ°ï¼è¿åè¿ä¸ªæ´æ°çé¶ä¹
public static int factorial(int num) {
int result = 1;
for(int i = 1;i<=num;i++)ï½
result *= i;
ï½
return result;
}
}