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jackzhenguojackzhenguo
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rst+plotly
1 parent ab73a75 commit 4699535

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‎README.md‎

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```
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![散点图](./img/scatter-plt.png)
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#### Plotly绘图
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1 绘制柱状图+折线图
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```python
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import plotly.graph_objects as go
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fig = go.Figure()
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fig.add_trace(
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go.Scatter(
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x=[0, 1, 2, 3, 4, 5],
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y=[1.5, 1, 1.3, 0.7, 0.8, 0.9]
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))
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fig.add_trace(
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go.Bar(
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x=[0, 1, 2, 3, 4, 5],
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y=[2, 0.5, 0.7, -1.2, 0.3, 0.4]
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))
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fig.show()
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```
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![1576311673983](./img/plotly1.png)
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2 饼图
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```python
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import plotly.graph_objects as go
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labels = ['照明与插座用电', '空调用电', '动力用电', '特殊用电']
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values = [4500, 2500, 1053, 500]
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fig = go.Figure(data=[go.Pie(labels=labels, values=values)])
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fig.show()
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```
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![1576311817234](./img/plotly2.png)
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#### 十三、PyQt
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1 [使用PyQt打造一款自己的计算器，仅有100行代码](./src/calculator)
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2) `raise StopIteration`：通过 raise 中断程序，必须这样写
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#### 十五 装饰器
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[测试函数执行时间的函数装饰器](./md/测试函数执行时间的函数装饰器.md)
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```python
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import time
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def timing_func(fn):
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def wrapper():
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start=time.time()
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fn() #执行传入的fn参数
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stop=time.time()
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return (stop-start)
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return wrapper
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@timing_func
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def test_list_append():
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lst=[]
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for i in range(0,100000):
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lst.append(i)
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@timing_func
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def test_list_compre():
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[i for i in range(0,100000)] #列表生成式
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a=test_list_append()
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c=test_list_compre()
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print("test list append time:",a)
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print("test list comprehension time:",c)
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print("append/compre:",round(a/c,3))
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test list append time: 0.0219423770904541
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test list comprehension time: 0.007980823516845703
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append/compre: 2.749
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```
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‎img/plotly1.png‎

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‎img/plotly2.png‎

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‎md/1576311610044.png‎

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‎md/README.md‎

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2. [将list等分为子组(生成器版)](将list等分为子组(生成器版).md)
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3. [多层列表转为单层列表](多层列表转为单层列表.md)
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### 十、迭代器
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#### 十、迭代器
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1. [递减迭代器](迭代器递减.md)
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2.
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#### 十一、Keras
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#### 十一、装饰器
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1. [测试函数执行时间的函数装饰器](测试函数执行时间的函数装饰器.md)
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#### 十二、Keras
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1. [Keras入门例子](Keras入门例子.md)
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#### 十二、邮件相关
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#### 十三、邮件相关
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[20行代码实现发邮件](简单邮件.md)
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[发送带附件的邮件](自动群发邮件.md)
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#### 十三、Pandas
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#### 十四、Pandas
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[列分割](split_csv.py)
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[xlsx批量合并到一个xlsx文件中](xlsx批量合并到一个xlsx文件中.md)
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#### 十四、PyQt
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#### 十五、PyQt
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[使用PyQt打造一款自己的计算器，仅有100行代码](./src/calculator2.py)
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‎md/奖金梯度计算.md‎

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‎md/折线+柱状图.md‎

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‎md/文件批量压缩.md‎

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```python
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#文件压缩
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import zipfile #导入zipfile,这个是用来做压缩和解压的Python模块；
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import zipfile # 导入zipfile,这个是用来做压缩和解压的Python模块；
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import os
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import time
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def zipflie(start_dir,target_dir):
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today_file = target_dir + os.sep + time.strftime('%Y%m%d') #创建一个当前日期的文件夹
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if not os.path.exists(today_file):
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os.mkdir(today_file)
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print('Successfully created directory',today_file)
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for item in os.listdir(start_dir):
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file_news = today_file+os.sep+item+'.zip' #存放位置创建压缩后文件夹的名字
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z = zipfile.ZipFile(file_news,'w')
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#start_dir+os.sep+item代表的是要写入z的文件
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z.write(start_dir+os.sep+item,item) #item代表只写入文件本身而不包含其完整路径
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print(item)
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def batch_zip(start_dir):
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start_dir = start_dir # 要压缩的文件夹路径
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file_news = start_dir + '.zip' # 压缩后文件夹的名字
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z = zipfile.ZipFile(file_news, 'w', zipfile.ZIP_DEFLATED)
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for dir_path, dir_names, file_names in os.walk(start_dir):
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# 这一句很重要，不replace的话，就从根目录开始复制
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f_path = dir_path.replace(start_dir, '')
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f_path = f_path and f_path + os.sep # 实现当前文件夹以及包含的所有文件的压缩
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for filename in file_names:
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z.write(os.path.join(dir_path, filename), f_path + filename)
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z.close()
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print ('压缩成功')
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return file_news
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start_dir = r"C:\Users\CQ375\Desktop\ex" #指定压缩文件夹路径
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target_dir = r"C:\Users\CQ375\Desktop\RFM" #指定压缩后存放文件夹
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zipflie(start_dir,target_dir)
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```
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batch_zip('./data/ziptest')
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Successfully created directory C:\Users\CQ375\Desktop\RFM\20191209
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440300A027.xlsx
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440300A029.xlsx
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440300A036.xlsx
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440300A045.xlsx
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440300A052.xlsx
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440300A059.xlsx
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data_result.xls
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test.txt
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test.xlsx
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压缩成功
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```
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md/@测试函数执行时间的函数装饰器.md renamed to md/测试函数执行时间的函数装饰器.md

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```python
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#测试函数执行时间的装饰器示例
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import time
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print("test list append time:",a)
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print("test list comprehension time:",c)
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print("append/compre:",round(a/c,3))
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#@timing_func修饰test_list_append意味着完成两部操作，将test_list_append作为timing_func()的参数即执行timing_func(test_list_append),然后将test_list_append替换成timing_func()返回的结果。
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#即被修饰的函数总是被替换成@符号所引用的函数返回值。
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```
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test list append time: 0.0219423770904541
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test list comprehension time: 0.007980823516845703
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append/compre: 2.749
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test list append time: 0.0219423770904541
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test list comprehension time: 0.007980823516845703
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append/compre: 2.749
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```

‎md/饼状图.md‎

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