自定义范围求素数
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public static void prime(int start,int end){//接收用户取值范围?int i , j;?for(i = start ; i <= end; i ++){??for( j = 2 ; j <= i / 2 + 1 ; j ++){???if( i % j == 0 )????break;??}??if( j > i / 2 + 1)???System.out.print(i+" ");?} }