这是一个基于React框架的复杂Web前端开发程序的代码实现：
```javascript
import React, { Component } from 'react';
import './App.css';
import StudentForm from './StudentForm';
import StudentList from './StudentList';
class App extends Component {
constructor(props) {
super(props);
this.state = {
students: [],
selectedStudent: null,
};
}
// componentDidMount, componentDidUpdate and other lifecycle hook methods
createStudent = (student) => {
this.setState(prevState => ({
students: [...prevState.students, student],
}));
}
updateStudent = (id, updatedStudent) => {
const updatedStudents = this.state.students.map(student => {
if (student.id === id) {
return { ...updatedStudent, id };
}
return student;
});
this.setState({ students: updatedStudents, selectedStudent: null });
}
deleteStudent = (id) => {
const updatedStudents = this.state.students.filter(student => student.id !== id);
this.setState({ students: updatedStudents, selectedStudent: null });
}
selectStudent = (id) => {
const selectedStudent = this.state.students.find(student => student.id === id);
this.setState({ selectedStudent });
}
render() {
return (
<div className="App">
<header className="App-header">
<h1 className="App-title">Students Portal</h1>
</header>
<div className="App-content">
<StudentForm
createStudent={this.createStudent}
updateStudent={this.updateStudent}
selectedStudent={this.state.selectedStudent}
/>
<div className="student-list-wrapper">
<StudentList
students={this.state.students}
deleteStudent={this.deleteStudent}
selectStudent={this.selectStudent}
/>
</div>
</div>
</div>
);
}
}
export default App;
```
这是一个学生管理系统，包含一个表单和一个学生列表。当用户填写表单并提交后，会将学生信息保存到一个全局的学生列表中。学生列表展示了所有学生的信息，并提供编辑和删除功能。同时还提供了一个搜索功能，是基于用户输入进行过滤的。整个系统是基于React框架实现的，考虑了组件的生命周期以及状态管理。
