小编ami*_*_70的帖子

我想使用 MUI 中的日期选择器，但收到此错误，并且我不知道到底出了什么问题。这是我的代码：

import TextField from "@mui/material/TextField";
import DatePicker from "@mui/lab/DatePicker";
import AdapterDateFns from "@mui/lab/AdapterDateFns";
import LocalizationProvider from "@mui/lab/LocalizationProvider";

const ExpenseForm = () => {
  return (
    <Box component="form" noValidate autoComplete="off">
      <LocalizationProvider dateAdapter={AdapterDateFns}>
        <DatePicker
          label="Basic example"
          onChange={(newValue) => {}}
          renderInput={(params) => <TextField {...params} />}
        />
      </LocalizationProvider>
    </Box>
  );
};

export default ExpenseForm;

和我的 package.json：

"dependencies": {
    "@date-io/date-fns": "^2.13.1",
    "@emotion/react": "^11.7.1",
    "@emotion/styled": "^11.6.0",
    "@mui/icons-material": "^5.3.1",
    "@mui/lab": "^5.0.0-alpha.68",
    "@mui/material": "^5.4.0",
    "@testing-library/jest-dom": "^5.16.1",
    "@testing-library/react": "^12.1.2",
    "@testing-library/user-event": "^13.5.0",
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-scripts": "5.0.0", …

我在实现以下代码时遇到问题.我想通过悬停另一个元素来影响元素.这是我的代码.

<div class="banner">
    <div class="first">
            <a href="Http://www.nytimes.com"><b>T</b></a>
    </div>
    <div class="second">
        <ul class="navigation" style="; border-radius: 10px; ">
            <p style="display: inline"  id="hp">
                <a href="http://www.nytimes.com">Go Back To Home</a>
            </p>
            <li><a href="http://www.somelink.com">Women Fashin</a></li>
            <li><a href="http://www.somelink.com">Men fashion</a></li>
        </ul>
    </div>
</div>

我希望#hp通过悬停来影响.first.我怎样才能达到这个效果？

我有两个应用程序“用户”和“游戏”，这是我的 user/models.py：

from django.db import models
from django.db.models.fields import related
from django.contrib.auth.models import AbstractBaseUser , User, 
 AbstractUser , PermissionsMixin
from .managers import CustomUserManager
from game.models import Game


class User(AbstractBaseUser,PermissionsMixin):
    username = models.CharField(max_length=150, 
                unique=True, blank=True , null=True,)
    email = models.EmailField( blank=True , null=True , unique=True)
    password = models.CharField(max_length=100, null=True , blank=True)


    objects = CustomUserManager()

    class Meta:
            db_table = 'user'


class Team(models.Model):
    name = models.CharField(max_length=40, unique=True)
    players = models.ManyToManyField(User, 
           related_name="players")
    game = models.ManyToManyField(Game)
    is_verfied = models.BooleanField(default=False)

    class Meta:
        db_table = 'team'

这是我的游戏/models.py： …