1008978_0_0_9676\Main.java:15: 空字符字面值 if( i != n - 1 )System.out.println(''); ^ 1008978_0_0_9676\Main.java:15: 未结束的字符字面值 if( i != n - 1 )System.out.println(''); ^ 1008978_0_0_9676\Main.java:15: 需要 ')' if( i != n - 1 )System.out.println(''); ^ 3 错误