127.0.0.1:9200
URL: http://127.0.0.1:9200/likecs_art_db/_search
REQUEST:
Array
(
[query] => Array
(
[match] => Array
(
[text] => Array
(
[query] => 共享数据保护
)
)
)
[highlight] => Array
(
[fields] => Array
(
[text] => stdClass Object
(
)
)
[pre_tags] => #em#
[post_tags] => #/em#
)
[size] => 8
[from] => 0
)
RESPONSE:string(7541) "{"took":18,"timed_out":false,"_shards":{"total":1,"successful":1,"skipped":0,"failed":0},"hits":{"total":{"value":10000,"relation":"gte"},"max_score":33.56408,"hits":[{"_index":"likecs_art_db","_type":"_doc","_id":"75924","_score":33.56408,"_source":{"id":"75924","text":"\u5171\u4eab\u6570\u636e\u4fdd\u62a4","intro":"\u76ee\u5f55\n\nECharts\n\u5f02\u6b65\u52a0\u8f7d\n\n\n\nECharts\r\n\u6570\u636e\u53ef\u89c6\u5316\u5728\u8fc7\u53bb\u51e0\u5e74\u4e2d\u53d6\u5f97\u4e86\u5de8\u5927\u8fdb\u5c55\u3002\u5f00\u53d1\u4eba\u5458\u5bf9\u53ef\u89c6\u5316\u4ea7\u54c1\u7684\u671f\u671b\u4e0d\u518d\u662f\u7b80\u5355\u7684\u56fe\u8868\u521b\u5efa\u5de5\u5177\uff0c\u800c\u662f\u5728\u4ea4\u4e92\u3001\u6027\u80fd\u3001\u6570\u636e\u5904\u7406\u7b49\u65b9\u9762\u6709\u66f4\u9ad8\u7684\u8981\u6c42\u3002\r\nchart.setOption({\r\n color: [\r\n 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","username":"","tagsname":null,"tagsid":"","catesname":null,"catesid":"","createtime":"1631921661"},"highlight":{"text":["文件#em#共#/em##em#享#/em#、文件#em#保#/em##em#护#/em#"]}},{"_index":"likecs_art_db","_type":"_doc","_id":"689836","_score":24.075893,"_source":{"id":"689836","text":"windows7 \u5bc6\u7801\u4fdd\u62a4 \u5171\u4eab\u6587\u4ef6","intro":"\u76ee\u5f55\n\nECharts\n\u5f02\u6b65\u52a0\u8f7d\n\n\n\nECharts\r\n\u6570\u636e\u53ef\u89c6\u5316\u5728\u8fc7\u53bb\u51e0\u5e74\u4e2d\u53d6\u5f97\u4e86\u5de8\u5927\u8fdb\u5c55\u3002\u5f00\u53d1\u4eba\u5458\u5bf9\u53ef\u89c6\u5316\u4ea7\u54c1\u7684\u671f\u671b\u4e0d\u518d\u662f\u7b80\u5355\u7684\u56fe\u8868\u521b\u5efa\u5de5\u5177\uff0c\u800c\u662f\u5728\u4ea4\u4e92\u3001\u6027\u80fd\u3001\u6570\u636e\u5904\u7406\u7b49\u65b9\u9762\u6709\u66f4\u9ad8\u7684\u8981\u6c42\u3002\r\nchart.setOption({\r\n color: [\r\n 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","username":"liweis","tagsname":"","tagsid":"","catesname":null,"catesid":"","createtime":"1639529032"},"highlight":{"text":["“密码#em#保#/em##em#护#/em##em#共#/em##em#享#/em#”关不掉"]}},{"_index":"likecs_art_db","_type":"_doc","_id":"203323941","_score":23.02355,"_source":{"id":"203323941","text":"\u5408\u89c4\u5f53\u5934\uff0c\u5982\u4f55\u5e73\u8861\u6570\u636e\u5171\u4eab\u4e0e\u9690\u79c1\u4fdd\u62a4\uff1f","intro":"\u76ee\u5f55\n\nECharts\n\u5f02\u6b65\u52a0\u8f7d\n\n\n\nECharts\r\n\u6570\u636e\u53ef\u89c6\u5316\u5728\u8fc7\u53bb\u51e0\u5e74\u4e2d\u53d6\u5f97\u4e86\u5de8\u5927\u8fdb\u5c55\u3002\u5f00\u53d1\u4eba\u5458\u5bf9\u53ef\u89c6\u5316\u4ea7\u54c1\u7684\u671f\u671b\u4e0d\u518d\u662f\u7b80\u5355\u7684\u56fe\u8868\u521b\u5efa\u5de5\u5177\uff0c\u800c\u662f\u5728\u4ea4\u4e92\u3001\u6027\u80fd\u3001\u6570\u636e\u5904\u7406\u7b49\u65b9\u9762\u6709\u66f4\u9ad8\u7684\u8981\u6c42\u3002\r\nchart.setOption({\r\n color: [\r\n ","username":"","tagsname":null,"tagsid":"","catesname":null,"catesid":"","createtime":"1624147072"},"highlight":{"text":["合规当头,如何平衡#em#数#/em##em#据#/em##em#共#/em##em#享#/em#与隐私#em#保#/em##em#护#/em#?"]}},{"_index":"likecs_art_db","_type":"_doc","_id":"689808","_score":22.41704,"_source":{"id":"689808","text":"\u5982\u4f55\u7528\u5bc6\u7801\u4fdd\u62a4\u5171\u4eab\u6587\u4ef6\uff1f","intro":"\u76ee\u5f55\n\nECharts\n\u5f02\u6b65\u52a0\u8f7d\n\n\n\nECharts\r\n\u6570\u636e\u53ef\u89c6\u5316\u5728\u8fc7\u53bb\u51e0\u5e74\u4e2d\u53d6\u5f97\u4e86\u5de8\u5927\u8fdb\u5c55\u3002\u5f00\u53d1\u4eba\u5458\u5bf9\u53ef\u89c6\u5316\u4ea7\u54c1\u7684\u671f\u671b\u4e0d\u518d\u662f\u7b80\u5355\u7684\u56fe\u8868\u521b\u5efa\u5de5\u5177\uff0c\u800c\u662f\u5728\u4ea4\u4e92\u3001\u6027\u80fd\u3001\u6570\u636e\u5904\u7406\u7b49\u65b9\u9762\u6709\u66f4\u9ad8\u7684\u8981\u6c42\u3002\r\nchart.setOption({\r\n color: [\r\n ","username":"mvperic","tagsname":null,"tagsid":"","catesname":null,"catesid":"","createtime":"1639529023"},"highlight":{"text":["如何用密码#em#保#/em##em#护#/em##em#共#/em##em#享#/em#文件?"]}},{"_index":"likecs_art_db","_type":"_doc","_id":"744980","_score":22.41704,"_source":{"id":"744980","text":"\u5982\u4f55\u7528\u5bc6\u7801\u4fdd\u62a4\u5171\u4eab\u6587\u4ef6\uff1f","intro":"\u76ee\u5f55\n\nECharts\n\u5f02\u6b65\u52a0\u8f7d\n\n\n\nECharts\r\n\u6570\u636e\u53ef\u89c6\u5316\u5728\u8fc7\u53bb\u51e0\u5e74\u4e2d\u53d6\u5f97\u4e86\u5de8\u5927\u8fdb\u5c55\u3002\u5f00\u53d1\u4eba\u5458\u5bf9\u53ef\u89c6\u5316\u4ea7\u54c1\u7684\u671f\u671b\u4e0d\u518d\u662f\u7b80\u5355\u7684\u56fe\u8868\u521b\u5efa\u5de5\u5177\uff0c\u800c\u662f\u5728\u4ea4\u4e92\u3001\u6027\u80fd\u3001\u6570\u636e\u5904\u7406\u7b49\u65b9\u9762\u6709\u66f4\u9ad8\u7684\u8981\u6c42\u3002\r\nchart.setOption({\r\n color: [\r\n 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127.0.0.1:9200
URL: http://127.0.0.1:9200/likecs_art_db/_search
REQUEST:Array
(
[query] => Array
(
[match] => Array
(
[text] => Array
(
[query] => 共享数据保护
)
)
)
[highlight] => Array
(
[fields] => Array
(
[text] => stdClass Object
(
)
)
[pre_tags] => #em#
[post_tags] => #/em#
)
[size] => 8
[from] => 8
)
RESPONSE:string(7897) "{"took":19,"timed_out":false,"_shards":{"total":1,"successful":1,"skipped":0,"failed":0},"hits":{"total":{"value":10000,"relation":"gte"},"max_score":33.56408,"hits":[{"_index":"likecs_art_db","_type":"_doc","_id":"203438810","_score":20.48382,"_source":{"id":"203438810","text":"\u6570\u636e\u4fdd\u62a4\u4f1e\u2014\u4e3aMaxCompute\u5e73\u53f0\u6570\u636e\u5b89\u5168\u4fdd\u9a7e\u62a4\u822a","intro":"\u76ee\u5f55\n\nECharts\n\u5f02\u6b65\u52a0\u8f7d\n\n\n\nECharts\r\n\u6570\u636e\u53ef\u89c6\u5316\u5728\u8fc7\u53bb\u51e0\u5e74\u4e2d\u53d6\u5f97\u4e86\u5de8\u5927\u8fdb\u5c55\u3002\u5f00\u53d1\u4eba\u5458\u5bf9\u53ef\u89c6\u5316\u4ea7\u54c1\u7684\u671f\u671b\u4e0d\u518d\u662f\u7b80\u5355\u7684\u56fe\u8868\u521b\u5efa\u5de5\u5177\uff0c\u800c\u662f\u5728\u4ea4\u4e92\u3001\u6027\u80fd\u3001\u6570\u636e\u5904\u7406\u7b49\u65b9\u9762\u6709\u66f4\u9ad8\u7684\u8981\u6c42\u3002\r\nchart.setOption({\r\n color: [\r\n 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127.0.0.1:9200
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共享数据保护 - 爱码网
共享数据的保护
常对象
常对象是一个特别的对像:它的数据成员值在整个对象的生存期间内不能被改变。即常对象必须进行初始化,而且不能被更新。
class A
{
public:
A(int x,int y):x(i),y(j){}
private:
int x,y;
}
const A a(3,4);
这样的一个用const修饰的对象是一个常对象在定义常对象时需要对它赋初值,并且该常对象的初值并不会随程序的运行而发生改变
用const修饰的类成员
常成员函数
声明方式:
类型说明符 函数名(参数表) const;
在函数重载时加const的常成员函数与常规的函数相同命名时构成有效重载函数如:
void print();
void print() const;
#include<iostream>
using namespace std;
class R{
public:
R(int r1, int r2) :r1(r1), r2(r2){ };
void print();
void print() const;
private:
int r1, r2;
};
void R::print(){
cout << r1 << ":" << r2 << endl;
}
void R::print() const{
cout << r1 << ":" << r2 << endl;
}
int main()
{
R a(5, 4);
a.print();
const R b(8, 10);
b.print();
return 0;
}
常对象只能调用它的常成员函数,而不能调用其他成员函数(c++语法机制上的对常对象的保护)
无论是否通过常对象调用常成员函数,在调用常成员函数期间目标对象都被视为常对象,因而常成员函数无法对目标对象的数据成员进行修改
常数据成员
常数据成员一旦声明并初始化,任何函数都将无法对该成员赋值,构造函数对该数据成员进行初始化,就只能通过初始化列表。
#include<iostream>
using namespace std;
class A{
public:
A(int i);
void print() ;
private:
const int a;
static const int b;
};
const int A::b = 10;//给静态常数据成员赋值
A::A(int i) :a(i){} // 构造函数
void A::print(){
cout << a << ":" << b<< endl;
}
int main()
{
A a1(100),a2(0);//给常数据成员赋值
a1.print();
a2.print();
return 0;
}
常引用
如果在声明引用时用const修饰,被声明的引用就是常引用,常引用所引用的对象不能被更新;
若用常引用做形参,便不会意外地发生对实参的更改。
常引用的声明:
const 类型说明符 &引用名;
#include<iostream>
using namespace std;
class Point{
public:
Point(int x = 0, int y = 0) :x(x), y(y){}
int getx(){ return x; }
int gety(){ return y; }
friend float dist(const Point &p1, const Point &p2);//常对象引用
private:
int x, y;
};
//常对象引用作形参
float dist(const Point &p1, const Point &p2){
double x = p1.x - p2.x;
double y = p1.y - p2.y;
return static_cast<float>(sqrt(x*x + y*y));
}
int main()
{
const Point myp1(1, 1), myp2(4, 5);
cout << "The distance is:" << endl;
cout << dist(myp1, myp2) << endl;
return 0;
}
对于在函数中无需改变其值的参数,不宜使用普通方式传值,因为那会使得对象无法被传入,采用值传递或常引用的方式可以避免这一问题;复制构造函数的参数传递一般也采用常引用传递。
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