import streamlit as st

st.markdown("# Main page 🎈")
st.sidebar.markdown("# Main page 🎈")

import streamlit as st

st.markdown("# Page 2 ❄️")
st.sidebar.markdown("# Page 2 ❄️")

import streamlit as st

st.markdown("# Page 3 🎉")
st.sidebar.markdown("# Page 3 🎉")

from flask import Flask
from flask import g, request

app=Flask(__name__)

@app.before_request
def span_num_init():
	g.start_num = 0 # 定义g变量
	g.span_mum = 5 # 定义g变量

@app.route("/fun1")
def fun1():
    g.start_num=9
    g.span_num=16

@app.route("/fun2")
def fun2():
    print("start_num=",g.start_num) # 此处start_num又变为0
    print("span_num=",g.span_num]) # 此处start_num又变为5

def get_option_item():
    item = ["项目1"，"项目2"，"项目3"，"项目4"，"项目5"，"项目6"，"项目7"，]
    return item
#视图1
@app.route(/index1)
def index1():
    item=get_option_item()
    return render_template("index1.html", item=itme)
....
#视图n
@app.route(/index_n)
def index_n():
    item=get_option_item()
    return render_template("indexn.html", item=itme)

# current_app对象是一个定义在应用上下文中的代理
from flask import current_app
app=Flask(__name__)

# 函数用@app.context_processor装饰器修饰，它是一个上下文处理器，它的作用是在模板被渲染前运行其所修饰的函数，并将函数返回的字典导入到模板上下文环境中，与模板上下文合并。
@app.context_processor
def get_option_item():
    item = ["项目1"，"项目2"，"项目3"，"项目4"，"项目5"，"项目6"，"项目7"，]
    return dict(item=item) #注意是字典
# 视图函数不用再调用了
#视图n
@app.route(/index_n)
def index_n():
    # item=get_option_item()
    return render_template("indexn.html")

class MockCreate(Form):
    user_email = StringField("email address",[validators.Email()])
    api = StringField("api",[Required()])
    submit = SubmitField("Submit")
    code = IntegerField("code example: 200",[Required()])
    alias = StringField("alias for api")
    data = TextAreaField("json format",[Required()])


@app.route("/mockservice",methods=['GET','POST'])
def MockController():
    form = MockCreate()
    code = form['code']
    api = form['api']
    return render_template("testf.html",api=api,data=code)

from flask import Flask
from flask import render_template
from flask_wtf import FlaskForm
from wtforms.fields import (StringField, PasswordField, DateField, BooleanField,
                            SelectField, SelectMultipleField, TextAreaField,
                            RadioField, IntegerField, DecimalField, SubmitField)
from wtforms.validators import DataRequired, InputRequired, Length, Email, EqualTo, NumberRange


app = Flask(__name__)
app.secret_key = 'asdfs'


class WtfForm(FlaskForm):
    # StringField 文本输入框，必填，用户名长度为4到25之间，占位符
    username = StringField('用户名：', validators=[Length(min=4, max=25)], render_kw={'placeholder': '请输入用户名'})

    # Email格式
    email = StringField('邮箱地址：', validators=[Email()], render_kw={'placeholder': '请输入邮箱地址'})

    # PasswordField，密码输入框，必填
    password = PasswordField('密码：', validators=[DataRequired()], render_kw={'placeholder': '请输入密码'})

    # 确认密码，必须和密码一致
    password2 = PasswordField('确认密码：', validators=[InputRequired(), EqualTo('password', '两次密码要一致')])

    # IntegerField，文本输入框，必须输入整型数值，范围在16到70之间
    age = IntegerField('年龄：', validators=[NumberRange(min=16, max=70)])

    # DecimalField，文本输入框，必须输入数值，显示时保留一位小数
    height = DecimalField('身高(cm):', places=1)

    # DateField，文本输入框，必须输入是"年-月-日"格式的日期
    birthday = DateField('出生日期：', format='%Y-%m-%d')

    # RadioField，单选框，choices里的内容会在ul标签里，里面每个项是(值，显示名)对
    gender = RadioField('性别：', choices=[('0', '男'), ('1', '女')], validators=[DataRequired()])

    # SelectField，下拉单选框，choices里的内容会在Option里，里面每个项是(值，显示名)对
    job = SelectField('职业：', choices=[
        ('teacher', '教师'),
        ('doctor', '医生'),
        ('engineer', '工程师'),
        ('lawyer', '律师')
    ])

    # Select类型，多选框，choices里的内容会在Option里，里面每个项是(值，显示名)对
    hobby = SelectMultipleField('爱好：', choices=[
        ('0', '吃饭'),
        ('1', '睡觉'),
        ('2', '敲代码')
    ])

    # TextAreaField，段落输入框
    description = TextAreaField('自我介绍：', validators=[InputRequired()], render_kw={'placeholder': '例：小明，18岁，未婚找女友'})

    # BooleanField，Checkbox类型，加上default='checked'即默认是选上的
    accept_terms = BooleanField('是否接受上述条款', default='checked', validators=[DataRequired()])

    # SubmitField，Submit按钮
    submit = SubmitField('提交')


@app.route('/', methods=['POST', 'GET'])
def index():
    form = WtfForm()
    return render_template('wtf.html', form=form)

if __name__ == "__main__":
    app.run(debug=True)

from flask import Flask,request,render_template

app=Flask(__name__)

app.secret_key = '就得是要一个key'   # 必须有
app.config['SESSION_TYPE'] = 'filesystem' # 必须有

start_num=0
span_num=5

@app.route("/fun1")
def fun1():
    start_num=9
    span_num=16

@app.route("/fun2")
def fun2():
    print("start_num=",start_num) #此处start_num又变为0
    print("span_num=",span_num]) #此处start_num又变为5

from flask import Flask,request,render_template
from flask import session

app=Flask(__name__)

app.secret_key = '我的key'
app.config['SESSION_TYPE'] = 'filesystem'

session["start_num"]=0
session["span_num"]=5

@app.route("/fun1")
def fun1():
    session["start_num"]=9
    session["span_num"]=16

@app.route("/fun2")
def fun2():
    print("session["start_num"]",session["start_num"]) #此处session["start_num"]又变为9
    print("session["span_num"]",session["span_num"]) #此处session["start_num"]又变为16

from flask import Flask,request,render_template

app=Flask(__name__)

@app.route(/)
def index():
    return render_template("index.html")

@app.route("regist")
def regist():
    if request.method=="GET":
        return render_template("regist.html") # 没有输入的样子就是这个。
    if request.methom=="POST":
        uname=request.form.get("username")
        password=request.form.get("pawd")
        re_password=request.form.get("re-pawd")
    #下面添加处理语句

if __name__=="__main__":
    app.debug=True
    app.run(host = '127.0.0.1',port = 8080 )

DataFrame.to_html(buf=None, columns=None, col_space=None, header=True, index=True,na_rep='NaN', formatters=None,
				  float_format=None, sparsify=None, index_names=True,justify=None, bold_rows=True,classes=None,
				  escape=True, max_rows=None, max_cols=None,show_dimensions=False, notebook=False, decimal='.',
				  border=None)

pd.read_excel(io, sheet_name=0, header=0, names=None,      index_col=None, 
       usecols=None, squeeze=False,dtype=None, engine=None, 
       converters=None, true_values=None, false_values=None, 
       skiprows=None, nrows=None, na_values=None, parse_dates=False, 
       date_parser=None, thousands=None, comment=None, skipfooter=0, 
       convert_float=True, **kwds)

DataFrame.to_excel(excel_writer, sheet_name='Sheet1', na_rep='', float_format=None, columns=None,
        header=True, index=True, index_label=None, startrow=0, startcol=0, engine=None, merge_cells=True,
        encoding=None, inf_rep='inf', verbose=True, freeze_panes=None)