52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
/* 中括号重载.cpp */
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#include <cstring>
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#include <iostream>
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using namespace std;
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struct Person { //职工基本信息的结构
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double salary;
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char *name;
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};
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class SalaryManaege {
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Person *employ; //存放职工信息的数组
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int max; //数组下标上界
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int n; //数组中的实际职工人数
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public:
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SalaryManaege(int Max = 0) {
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max = Max;
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n = 0;
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employ = new Person[max];
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}
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//返回引用特性是可以直接在放在左值，直接使用
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double &operator[](char *Name) { //重载[]，返回引用
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Person *p;
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for (p = employ; p < employ + n; p++)
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//如果存在处理
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if (strcmp(p->name, Name) == 0)
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return p->salary;
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//不存在情况处理
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p = employ + n++;
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p->name = new char[strlen(Name) + 1];
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strcpy(p->name, Name);
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p->salary = 0;
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return p->salary;
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}
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void display() {
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for (int i = 0; i < n; i++)
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cout << employ[i].name << " " << employ[i].salary << endl;
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}
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~SalaryManaege() { delete[] employ; }
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};
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int main() {
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SalaryManaege s(3);
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s["张三"] = 2188.88;
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s["里斯"] = 1230.07;
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s["王无"] = 3200.97;
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cout << "张三\t" << s["张三"] << endl;
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cout << "里斯\t" << s["里斯"] << endl;
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cout << "王无\t" << s["王无"] << endl;
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cout << "-------下为display的输出--------\n\n";
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s.display();
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}
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