如何在python中current_date.strftime("%Y年%m月%d日")
时间: 2024-04-17 11:25:11 浏览: 144
在Python中,你可以使用`datetime`模块来获取当前日期,并使用`.strftime()`方法将其格式化为指定的日期格式。下面是一个示例代码:
```python
from datetime import datetime
current_date = datetime.now()
formatted_date = current_date.strftime("%Y年%m月%d日")
print(formatted_date)
```
运行以上代码,你将得到类似于`2022年12月16日`格式的当前日期。
相关问题
current_date.strftime转成string
要将datetime对象转换为字符串,可以使用strftime()方法。strftime()方法接受一个格式字符串作为参数,用于指定输出的日期时间格式。以下是一个示例代码,将当前日期时间对象current_date转换为字符串格式:
```python
import datetime
current_date = datetime.datetime.now()
date_string = current_date.strftime("%Y-%m-%d %H:%M:%S")
print(date_string)
```
在上述代码中,strftime("%Y-%m-%d %H:%M:%S")指定了日期时间的格式,其中"%Y"代表四位数的年份,"%m"代表两位数的月份,"%d"代表两位数的日期,"%H"代表24小时制的小时数,"%M"代表分钟数,"%S"代表秒数。
执行以上代码,将会输出当前日期时间的字符串表示,例如:"2022-01-01 12:34:56"。你可以根据需要调整格式字符串来满足你的具体需求。
请帮我写一段单元测试,来测试以下代码:from flask import render_template, Blueprint, request, abort from flask_login import login_required, current_user from sqlalchemy import select, between, or_, desc from flbs.sign.sign_model import OperationLog, User from flbs.extensions import db from datetime import datetime dashboard_bp = Blueprint('dashboard', __name__) @dashboard_bp.before_request @login_required def add_operation_log(): # OperationLog.add_operation_log(current_user.userid, current_user.username) pass @dashboard_bp.route('/dashboard') def dashboard(): if 'd1' not in current_user.permissions: return abort(403) page = request.args.get('page', default=1) try: page = int(page) except ValueError: page = 1 daterange = request.args.get('daterange', default=datetime.now().strftime('%Y-%m-%d') + ' - ' + datetime.now().strftime( '%Y-%m-%d')) date_1 = daterange[:10] date_2 = daterange[-10:] + ' 23:59:59.999999' user = request.args.get('user', '').strip() module = request.args.get('module', '').strip() sql_query = select(OperationLog).where(between(OperationLog.c_date, datetime.strptime(date_1, "%Y-%m-%d"), datetime.strptime(date_2, "%Y-%m-%d %H:%M:%S.%f"))) if user: sql_query = sql_query.where(or_(OperationLog.userid == user, OperationLog.username == user)) if module: sql_query = sql_query.where( or_(OperationLog.endpoint.like("%" + module + "%"), OperationLog.full_path.like("%" + module + "%"))) sql_query = sql_query.order_by(desc(OperationLog.id)) # print(sql_query) paginated = db.paginate(select=sql_query, page=page, per_page=10) # 分页 pagination_query = {'daterange': daterange, 'user': user, 'module': module} return render_template('dashboard/dashboard.html', header_title='flask-sqlalchemy', tips='test pagination', user=user, daterange=daterange, module=module, paginated=paginated, endpoint=request.endpoint, total=paginated.total, full_path=request.full_path, pagination_query=pagination_query)
以下是一个可能的单元测试代码示例:
```python
from flask import url_for
from flask_login import login_user, logout_user
from datetime import datetime, timedelta
from flbs.sign.sign_model import OperationLog, User
from flbs.extensions import db
from yourapp import create_app
def test_dashboard(client):
# 创建测试应用
app = create_app('testing')
# 配置测试用户
user = User(username='testuser', password='testpass', permissions=['d1'])
db.session.add(user)
db.session.commit()
# 配置测试数据
now = datetime.utcnow()
log1 = OperationLog(userid=user.userid, username=user.username, endpoint='/dashboard', full_path='/dashboard', c_date=now)
log2 = OperationLog(userid=user.userid, username=user.username, endpoint='/dashboard', full_path='/dashboard', c_date=now - timedelta(days=1))
db.session.add_all([log1, log2])
db.session.commit()
# 登录测试用户
login_user(user)
# 访问仪表盘页面
response = client.get(url_for('dashboard.dashboard'))
assert response.status_code == 200
assert b"flask-sqlalchemy" in response.data
assert b"test pagination" in response.data
assert b"testuser" in response.data
assert bytes(now.strftime('%Y-%m-%d'), 'utf-8') in response.data
assert bytes((now - timedelta(days=1)).strftime('%Y-%m-%d'), 'utf-8') not in response.data
# 登出测试用户
logout_user()
```
这个测试使用了 Flask-Testing 扩展,可以通过 `client` 参数获得测试客户端。在测试中,我们创建了一个测试用户和两个测试操作日志,并登录该用户,然后访问仪表盘页面,检查页面是否包含预期的内容。最后,我们登出测试用户。注意,在使用测试数据库之前,需要在测试配置中正确地配置数据库连接。
阅读全文