- public class zifuchuanzhuanshuzu {
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
String s=in.next();
char[] ch=s.toCharArray();
int fuhao=0;
if(ch[0]=='-'||ch[0]=='+'){
fuhao=1;
}
int sum=0;
for(int i=fuhao;i<ch.length;i++){
if(ch[i]<48||ch[i]>57)
System.out.println("error");
sum=sum*10+ch[i]-48;
}
if(ch[0]=='-')
System.out.println(sum*(-1));
if(ch[0]=='+')
System.out.println(sum*(+1));
}
}
将字符串转换成数组
最新推荐文章于 2024-07-24 14:31:30 发布