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类的三大特性(继承, 封装, 多态)
类的三大特性之继承 class Animals: a_type = "哺乳动物" def __init__(self,name,age,sex): self.name = name self.age = age self.sex = sex def eat(self): print("%s is e ...
分类:其他好文   时间:2020-07-01 17:26:04    阅读次数:95
Identifying Some Common Fallacies
3.9.4 False Cause Fallacy It occurs when the “link between premises and conclusion depends on some imagined causal connection that probably does not e ...
分类:其他好文   时间:2020-07-01 14:12:14    阅读次数:68
where T : class
122 where T : struct The type argument must be a value type. Any value type except Nullable can be specified. See Using Nullable Types (C# Programming ...
分类:其他好文   时间:2020-07-01 09:48:21    阅读次数:65
1051. Height Checker
Students are asked to stand in non-decreasing order of heights for an annual photo. Return the minimum number of students that must move in order for ...
分类:其他好文   时间:2020-06-29 15:25:43    阅读次数:59
elasticSearch多条件高级检索语句,包含多个must、must_not、should嵌套示例,并考虑nested对象的特殊检索
多条件高级检索模板 多条件高级检索es语句,包含多个must、must_not、should嵌套示例,并考虑nested对象的特殊检索 该模板适用于所有情况,尤其适用于侧边栏多级多条件联合查询 { "query": { "bool": { "must": [ { "match": { "title" ...
分类:其他好文   时间:2020-06-29 13:09:09    阅读次数:551
90. Subsets II
Given a collection of integers that might contain duplicates, nums, return all possible subsets (the power set). Note: The solution set must not conta ...
分类:其他好文   时间:2020-06-29 00:11:37    阅读次数:54
源码剖析@contextlib.contextmanager
#### 示例 ``` @contextlib.contextmanager def result(a): print('before') yield print('after') ``` #### 外层装饰源码 包装func函数,真实调用func()时,返回的为_GeneratorContextM ...
分类:其他好文   时间:2020-06-28 00:31:58    阅读次数:64
0037. Sudoku Solver (H)
Sudoku Solver (H) 题目 Write a program to solve a Sudoku puzzle by filling the empty cells. A sudoku solution must satisfy all of the following rules: E ...
分类:其他好文   时间:2020-06-26 11:02:48    阅读次数:41
Web For Pentester1 -Directory traversal
Example 1 源码: <?php $UploadDir = '/var/www/files/'; if (!(isset($_GET['file']))) die(); $file = $_GET['file']; $path = $UploadDir . $file; if (!is_fil ...
分类:Web程序   时间:2020-06-25 17:18:00    阅读次数:61
服务器推送
http.Pusher只支持Go 1.8或更高版本 package main import ( "html/template" "log" "github.com/gin-gonic/gin" ) var html = template.Must(template.New("https").Pars ...
分类:其他好文   时间:2020-06-24 23:59:20    阅读次数:127
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