/* ǶÌ×Ñ­»·µÄʹÓà 1. ǶÌ×Ñ­»·£ºÊÇÖ¸Ò»¸öÑ­»·½á¹¹AµÄÑ­»·ÌåÊÇÁíÒ»¸öÑ­»·½á¹¹B¡£ - Íâ²ãÑ­»·£ºÑ­»·½á¹¹A - ÄÚ²ãÑ­»·£ºÑ­»·½á¹¹B 2. ˵Ã÷£º 1£©ÄÚ²ãÑ­»·³äµ±ÁËÍâ²ãÑ­»·µÄÑ­»·Ìå¡£ 2£©¶ÔÓÚÁ½²ãǶÌ×Ñ­»·À´Ëµ£¬Íâ²ãÑ­»·¿ØÖÆÐÐÊý£¬ÄÚ²ãÑ­»·¿ØÖÆÁÐÊý¡£ 3£©¾ÙÀý£ºÍâ²ãÑ­»·Ö´ÐÐm´Î£¬ÄÚ²ãÑ­»·Ö´ÐÐn´Î£¬ÔòÄÚ²ãÑ­»·µÄÑ­»·Ìå¹²Ö´ÐÐm * n´Î 4£©Êµ¼Ê¿ª·¢ÖУ¬ÎÒÃDz»»á³öÏÖÈý²ãÒÔÉϵÄÑ­»·½á¹¹£¬Èý²ãµÄÑ­»·½á¹¹¶¼ºÜÉÙ¼û¡£ */ class ForForTest { public static void main(String[] args) { //****** for(int i = 1;i <= 6;i++){ System.out.print('*'); } System.out.println("\n##################"); /* ****** ****** ****** ****** ****** */ for(int j = 1;j <= 5;j++){ for(int i = 1;i <= 6;i++){ System.out.print('*'); } System.out.println(); } /* i(µÚ¼¸ÐÐ) j(ÿһÐÐÖÐ*µÄ¸öÊý) * 1 1 ** 2 2 *** 3 3 **** 4 4 ***** 5 5 */ for(int i = 1;i <= 5;i++){ for(int j = 1;j <= i;j++){ System.out.print("*"); } System.out.println(); } /* i(µÚ¼¸ÐÐ) j(ÿһÐÐÖÐ*µÄ¸öÊý) i + j = 7 --> j = 7 - i ****** 1 6 ***** 2 5 **** 3 4 *** 4 3 ** 5 2 * 6 1 */ for(int i = 1;i <= 6;i++){ for(int j = 1;j <= 7 - i;j++){ System.out.print("*"); } System.out.println(); } /* i(µÚ¼¸ÐÐ) j(ÿһÐÐÖÐ-µÄ¸öÊý) k(ÿһÐÐÖÐ*µÄ¸öÊý) 2*i + j = 10 --->j = 10 - 2*i --------* 1 8 1 k = 2 * i - 1 ------* * * 2 6 3 ----* * * * * 3 4 5 --* * * * * * * 4 2 7 * * * * * * * * * 5 0 9 * * * * * * * * * * * * * * * * */ //Éϰ벿·Ö for(int i = 1;i <= 5;i++){ // - for(int j = 1;j <= 10 - 2*i;j++){ System.out.print("-"); } // * for(int k = 1;k <= 2 * i - 1;k++){ System.out.print("* "); } System.out.println(); } } }