基础练习：报时助手
时间用时h和分m表示，在英文的读法中，读一个时间的方法是：
如果m为0，则将时读出来，然后加上“o'clock”，如3:00读作“three o'clock”。
如果m不为0，则将时读出来，然后将分读出来，如5:30读作“five thirty”。
时和分的读法使用的是英文数字的读法，其中0~20读作：
0:zero, 1: one, 2:two, 3:three, 4:four, 5:five, 6:six, 7:seven, 8:eight, 9:nine, 10:ten, 11:eleven, 12:twelve, 13:thirteen, 14:fourteen, 15:fifteen, 16:sixteen, 17:seventeen, 18:eighteen, 19:nineteen, 20:twenty。
30读作thirty，40读作forty，50读作fifty。
对于大于20小于60的数字，首先读整十的数，然后再加上个位数。如31首先读30再加1的读法，读作“thirty one”。
按上面的规则21:54读作“twenty one fifty four”，9:07读作“nine seven”，0:15读作“zero fifteen”。
zero fifteen
code： ac 3次
import java.util.*;
public class Main{
static int h;
static int m;
public static void main(String[] args) {
String []str={"zero","one","two","three","four"
,"five","six","seven","eight","nine","ten"
,"eleven","twelve","thirteen","fourteen"
,"fifteen","sixteen","seventeen","eighteen"
,"nineteen","twenty","thirty","forty"
,"fifty"};
Scanner in = new Scanner(System.in);
h = in.nextInt();
m = in.nextInt();
output(str, m);
}
private static void output(String[] str,int m) {
if(m==0){ //m==0
check(str, h);
System.out.println(" "+"o'clock");
}
else{ //m!=0
check(str,h);
check(str,m);
}
}
private static void check(String[] str, int h) {
{
int a=h/10;
int b=h%10;
if(h<=20)
System.out.print(str[h]+" ");
else{
System.out.print(str[a+18]+" ");
if(b!=0)
System.out.print(str[b]+" ");
}
//System.out.println(" "+"o'clock");
}
}
}
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