求高手出现，为什么c:forEach内容下的东西显示不出来，关于毕业设计的，代码如下： jsp中如何让c:foreach标签里的内容不重复显示
\u4e3a\u4ec0\u4e48\u5728jsp\u91ccC:foreach\u4e0d\u663e\u793a\u6570\u636e\uff0c\u6211\u7684\u6807\u7b7e\u5199\u7684\u6709\u95ee\u9898\u5417\uff1f\u4ee3\u7801\u5982\u4e0b\u3002\u5199\u9519\u4e86Arraylist()\u4e5f\u662f\u8981\u5199\u8303\u578b\u7684\uff0c\u800c\u4e14\u8981\u4fdd\u8bc1\u6709\u503c\u624d\u53ef\u4ee5\u663e\u793a\u51fa\u6765
\u6216\u8005
\u9644\u6ce8\uff1a
\u4e0d\u8bba\u662f\u5bf9\u6574\u6570\u8fd8\u662f\u5bf9\u96c6\u5408\u8fdb\u884c\u8fed\u4ee3\uff0c \u7684varStatus\u5c5e\u6027\u6240\u8d77\u7684\u4f5c\u7528\u76f8\u540c\u3002\u548cvar\u5c5e\u6027\u4e00\u6837\uff0cvarStatus\u7528\u4e8e\u521b\u5efa\u9650\u5b9a\u4e86\u4f5c\u7528\u57df\u7684\u53d8\u91cf\uff08\u6539\u53d8\u91cf\u53ea\u5728\u5f53\u524d\u6807\u7b7e\u4f53\u5185\u8d77\u4f5c\u7528\uff09\u3002\u4e0d\u8fc7\uff0c\u7531varStatus\u5c5e\u6027\u547d\u540d\u7684\u53d8\u91cf\u5e76\u4e0d\u5b58\u50a8\u5f53\u524d\u7d22\u5f15\u503c\u6216\u5f53\u524d\u5143\u7d20\uff0c\u800c\u662f\u8d4b\u4e88javax.servlet.jsp.jstl.core.LoopTagStatus\u7c7b\u7684\u5b9e\u4f8b\u3002\u8be5\u7c7b\u5305\u542b\u4e86\u4e00\u7cfb\u5217\u7684\u7279\u6027\uff0c\u5b83\u4eec\u63cf\u8ff0\u4e86\u8fed\u4ee3\u7684\u5f53\u524d\u72b6\u6001\uff0c\u5982\u4e0b\u8fd9\u4e9b\u5c5e\u6027\u7684\u542b\u4e49\u5982\u4e0b\u6240\u793a\uff1a
current\uff1a\u5f53\u524d\u8fd9\u6b21\u8fed\u4ee3\u7684\uff08\u96c6\u5408\u4e2d\u7684\uff09\u9879\u3002
index\uff1a\u5f53\u524d\u8fd9\u6b21\u8fed\u4ee3\u4ece0\u5f00\u59cb\u7684\u8fed\u4ee3\u7d22\u5f15\u3002
count\uff1a\u5f53\u524d\u8fd9\u6b21\u8fed\u4ee3\u4ece1\u5f00\u59cb\u7684\u8fed\u4ee3\u8ba1\u6570\u3002
first\uff1a\u7528\u6765\u8868\u660e\u5f53\u524d\u8fd9\u8f6e\u8fed\u4ee3\u662f\u5426\u4e3a\u7b2c\u4e00\u6b21\u8fed\u4ee3\uff0c\u8be5\u5c5e\u6027\u4e3aboolean\u7c7b\u578b\u3002
last\uff1a\u7528\u6765\u8868\u660e\u5f53\u524d\u8fd9\u8f6e\u8fed\u4ee3\u662f\u5426\u4e3a\u6700\u540e\u4e00\u6b21\u8fed\u4ee3\uff0c\u8be5\u5c5e\u6027\u4e3aboolean\u7c7b\u578b\u3002
begin\uff1abegin\u5c5e\u6027\u7684\u503c\u3002
end\uff1aend\u5c5e\u6027\u7684\u503c
step\uff1astep\u5c5e\u6027\u7684\u503c
1 在任何作用域中都无法找到目标对象，或者迭代的集合大小为0
2 数据对象的key引用不正确
3 集合中的对象(从你的代码看是JavaBean)提供的属性访问器可能有问题（set 和get方法）
4 C标签引入有问题，如果需要支持EL表达式应该引入http://java.sun.com/jstl/core_rt 这个uri
5 .....
你可以使用java硬编码在jsp页面试一下看看这个对象是否存在，然后再按照以上所说排除问题，应该不难解决
绛旓細gotoxy(p1.x,p1.y); printf("%c%c",2,2);gotoxy(p1.x, p1.y+1); printf("%c%c",2,2);p1.y+=4;gotoxy(p1.x,p1.y); printf("%c%c",2,2);gotoxy(p1.x,p1.y+1); printf("%c%c",2,2);return 0;} int print0(Point p){ int i=0;for(;i<...
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绛旓細define VK_RIGHT 0x4d00 define VK_DOWN 0x5000 define VK_UP 0x4800 define VK_HOME 0x4700 define VK_END 0x4100 define VK_SPACE 0x3920 define VK_ESC 0x011b define VK_ENTER 0x1C0d define SCREENWIDTH 640 define SCREENHEIGHT 480 define SIZE 16 define BGCOLOR BLACK define FORE...
绛旓細1. 绛旀锛欳.2. 缈昏瘧锛氳繖涓湴鍖虹殑鍒堕厭涓氬彂灞曟柟寮忔瘮杈冪壒鍒紝鍑犱箮娌℃湁澶栬祫锛堜粙鍏ワ級銆3. 瑙ｉ噴锛氭棰樼敤涓涓粙瀹剧煭璇瓀ith little foreign ownership鍋氭柟寮忕姸璇紝鍏跺疄鐩稿綋浜巌n a special way鐨勫悓浣嶈銆倃ith鍦ㄦ棰樺彲浠ョ洿璇戜负鈥滄湁鈥濄傚弬鑰冭祫鏂欙細鍘熷垱鍥炵瓟鍥紙绗159鍙峰洟鍛橈級...
绛旓細char p[M];p[i]=a[i][0];杩欐牱鍙互涓嶅嚭閿欍備絾鏄笉鐭ラ亾浣犺骞蹭粈涔銆
绛旓細杩欎釜澶畝鍗曚簡锛丏im a As Integer, b As Integer, c As Integer Private Sub HScroll1_Change()a = HScroll1.Value b = HScroll2.Value c = HScroll3.Value If Option1.Value = True Then Text1.ForeColor = RGB(a, b, c)ElseIf Option2.Value = True Then Text1.BackColor = RGB...
