常用的递归场景

// 递归生成菜单
renderMenuItem = (list: any) => {
    const res =
        list &&
        list.length &&
        list.map((route: any) => {
            const childrenList = route.subMenu
            if (childrenList && childrenList.length > 0) {
                return (
                    <SubMenu
                        key={‘/‘ + route.menuCode}
                        title={
                            <div>
                                <Icon
                                    type={route.iconCode}
                                    style={{ fontSize: ‘14px‘ }}
                                />
                                <span>{route.name}</span>
                            </div>
                        }
                    >
                        {this.renderMenuItem(childrenList)}
                    </SubMenu>
                )
            } else {
                return (
                    <MenuItem key={‘/‘ + route.menuCode}>
                        <Icon
                            type={route.iconCode}
                            style={{ fontSize: ‘14px‘ }}
                        />
                        <span>{route.name}</span>
                    </MenuItem>
                )
            }
        })
    return res
}

<Menu mode="inline" onClick={this.handleMenuClick} selectedKeys={[selectedKeys]}
    openKeys={openKeysCopy} onOpenChange={this.handleMenuOpenChange}
>
    {this.renderMenuItem(menuList)}
</Menu>