选定值的状态会一直恢复到其原始值

// 示例代码：使用localStorage保存和恢复表单状态
document.addEventListener('DOMContentLoaded', function() {
    const savedValue = localStorage.getItem('selectedValue');
    if (savedValue) {
        document.getElementById('mySelect').value = savedValue;
    }

    document.getElementById('myForm').addEventListener('change', function(event) {
        localStorage.setItem('selectedValue', event.target.value);
    });
});

// 示例代码：使用Redux管理状态
// actions.js
export const updateSelection = (value) => ({
    type: 'UPDATE_SELECTION',
    payload: value
});

// reducer.js
const initialState = { selectedValue: '' };

const formReducer = (state = initialState, action) => {
    switch (action.type) {
        case 'UPDATE_SELECTION':
            return { ...state, selectedValue: action.payload };
        default:
            return state;
    }
};