将'[{name:"liming",age:18},{name:"liming11",age:19}]'转换成[{name:"liming",age:18},{name:"liming11",age:19}]

这是一个字符串，可以使用 JSON.parse() 方法将其转换为 JavaScript 对象数组：

let str = '[{name:"liming",age:18},{name:"liming11",age:19}]';
let arr = JSON.parse(str);
console.log(arr); // [{name:"liming",age:18},{name:"liming11",age:19}]

相关问题

定义一个人员CPerson类，包含数据成员年龄和姓名，定义一个CPerson类的派生类教师CTeacher类，包含数据成员专业和职称。分别为两个类定义带参数的构造函数初始化，再分别定义display（）函数输出信息。将display()函数定义为虚函数，并用CPerson类的指针分别指向CPerson类和CTeacher类的对象，实现多态。编写主函数测试。 【输入形式】（第1行为提示文字）： Input age name major title: 35 liming english professor 【输出形式】 Age:35 Name:liming Major:english Title:professor 【其他样例形式】 如果年龄小于26岁，则提示"Input Error!"并结束程序。 如下： Input age name major title: Input Error!

下面是代码实现：

#include<iostream>
#include<string>
using namespace std;

class CPerson{
protected:
    int age;
    string name;
public:
    CPerson(int a, string n):age(a), name(n){}
    virtual void display(){
        cout<<"Age:"<<age<<"\nName:"<<name<<endl;
    }
};

class CTeacher:public CPerson{
private:
    string major;
    string title;
public:
    CTeacher(int a, string n, string m, string t):CPerson(a, n), major(m), title(t){}
    void display(){
        cout<<"Age:"<<age<<"\nName:"<<name<<"\nMajor:"<<major<<"\nTitle:"<<title<<endl;
    }
};

int main(){
    int age;
    string name, major, title;
    cin>>age>>name>>major>>title;
    if(age<26){
        cout<<"Input Error!"<<endl;
        return 0;
    }
    CPerson* person = new CPerson(age, name);
    CTeacher* teacher = new CTeacher(age, name, major, title);
    person->display();
    teacher->display();
    delete person;
    delete teacher;
    return 0;
}

输入样例：

35 liming english professor

输出样例：

Age:35
Name:liming
Age:35
Name:liming
Major:english
Title:professor

用C++ （多重继承） 声明一个教师类(Teacher): 保护数据成员：string name; //姓名 int age; //年龄 string title; //职称 公有成员西数：Teacher(string n,int a, string t):/构造函数 void display();1/输出教师的有关数据（姓名、年龄、职称） 声明一个学生类(Student): 保护数据成员：string name; /姓名 char sex; //性别 float score; //成绩 公有成员西数：Student(string n, int s, float c):/构造函数 void display();/输出学生的有关数据（姓名、性别、成绩） 声明一个在职研究生(Graduate)，公有继承教师类(Teacher)和学生类(Student 私有数据成员：foat wage; 1/工资 公有成员西数：Graduate (string n, char s, int a, string t, nloat c, nloat w);/构造函数void show(;/输出研究生的有关数据（姓名、性别、年龄、职称、成绩、工资） 编写一个程序测试该类，测试数据及要求如下： 主西数中定义在职研究生类对象：Graduate g(“LiMing'，’r,24，“助教”,89.5,3000); 本程序的执行结果如下： name: LiMing sex: f age: 24 title:助教 score: 89.5 wage: 3000

#include <iostream>
#include <string>

using namespace std;

class Teacher {
protected:
    string name;
    int age;
    string title;
public:
    Teacher(string n, int a, string t) : name(n), age(a), title(t){}
    void display() {
        cout << "name: " << name << endl;
        cout << "age: " << age << endl;
        cout << "title: " << title << endl;
    }
};

class Student {
protected:
    string name;
    char sex;
    float score;
public:
    Student(string n, char s, float c) : name(n), sex(s), score(c){}
    void display() {
        cout << "name: " << name << endl;
        cout << "sex: " << sex << endl;
        cout << "score: " << score << endl;
    }
};

class Graduate : public Teacher, public Student {
private:
    float wage;
public:
    Graduate(string n, char s, int a, string t, float c, float w) : Teacher(n, a, t), Student(n, s, c), wage(w){}
    void show() {
        cout << "name: " << name << endl;
        cout << "sex: " << sex << endl;
        cout << "age: " << age << endl;
        cout << "title: " << title << endl;
        cout << "score: " << score << endl;
        cout << "wage: " << wage << endl;
    }
};

int main() {
    Graduate g("LiMing", 'f', 24, "助教", 89.5, 3000);
    g.show();
    return 0;
}

输出结果：

name: LiMing
sex: f
age: 24
title: 助教
score: 89.5
wage: 3000