Ajax.ActionLink使用在提交参数明确的情况下,如:Ajax.ActionLink("加入购物车", "AddToCart", "Cart", new { GoodsId = 3, Amount = 10 }, ajaxOption, new { @class = "btn" })这里的提...
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Web程序 时间:
2015-03-19 14:38:39
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137
uva 357 Let Me Count The Ways
After making a purchase at a large department store, Mel's change was 17 cents. He received 1 dime, 1 nickel, and 2 pennies. Later that day, he was shopping at a c...
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其他好文 时间:
2015-03-15 16:59:14
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118
决策树是简单的,易懂的,易实现的,同样也是强大的。 决策树本身是一连串的if-else的组合,其最关键的问题就是对于一个输入数据集我们应该怎么去寻找这个if-else规则。按照先贤们的分法主要有如下几种:ID3,C4.5,CART。本文也将介绍这三种决策树。 一、ID3 要想弄明白ID3决...
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其他好文 时间:
2015-03-11 23:14:33
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171
Eva loves to collect coins from all over the universe, including some other planets like Mars. One day she visited a universal shopping mall which could accept all kinds of coins as payments. However,...
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其他好文 时间:
2015-03-06 11:24:03
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142
wm_concat(column):此函数实现字段合并,可以把列值以","号分隔起来并显示成一行,实现行转列的效果。 例如:表shopping: ----------------------------------------- u_id?????? goods?????????...
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其他好文 时间:
2015-03-06 10:41:25
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126
Shopping in Mars is quite a different experience. The Mars people pay by chained diamonds. Each diamond has a value (in Mars dollars M$). When making the payment, the chain can be cut at any position ...
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其他好文 时间:
2015-03-05 17:00:26
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144
Turn for MEGA
Time limit: 1.0 second
Memory limit: 64 MB
A traffic light at the turn for the “MEGA” shopping center from the Novomoskovskiy highway works in such a way that k cars are abl...
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其他好文 时间:
2015-03-04 19:11:46
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131
GOTO语句使用典例。 1 #include 2 #include 3 using namespace std; 4 5 const int maxn = 100010; 6 int mindif = 2147483647; 7 int sum[maxn]; 8 int main() 9 {1...
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其他好文 时间:
2015-03-04 12:40:11
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117
Eva loves to collect coins from all over the universe, including some other planets like Mars. One day she visited a universal shopping mall which cou...
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其他好文 时间:
2015-03-02 20:40:28
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178
起源:决策树切分数据集决策树每次决策时,按照一定规则切分数据集,并将切分后的小数据集递归处理。这样的处理方式给了线性回归处理非线性数据一个启发。能不能先将类似特征的数据切成一小部分,再将这一小部分放大处理,使用线性的方法增加准确率呢?Part I: 树的枝与叶枝:二叉 or 多叉? 在AdaBoos...
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其他好文 时间:
2015-03-02 00:54:58
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229