查询information_schema获取列名: # 查询information_schema获取列名defget_column_names(table_name):conn=connect_to_database()cursor=conn.cursor()# 构造SQL语句sql=f"SELECT COLUMN_NAME FROM information_schema.COLUMNS WHERE TABLE_NAME = '{table_name}'"# 执行SQL语句cursor.execute(sql)# 获取结果result=...
print(f'这是新建表单前的表单列表{wb.sheetnames}') newSheet = wb.create_sheet('newSheet', 1) #index为指定新建表单的位置 print(f'这是新建表单后的表单列表{wb.sheetnames}') # 根据表单名字获取表单对象 # 官方推荐使用方式二 # 1.方式一 # Sheet1 = wb.get_sheet_by_name('Sheet1') # 2....
import pandas as pd data = {'Name': ['John', 'Emma', 'Mike'], 'Age': [25, 28, 30], 'City': ['New York', 'London', 'Paris']} df = pd.DataFrame(data) column_names = df.columns print(column_names) 输出: 代码语言:txt 复制 Index(['Name', 'Age', 'City'], dtype='obje...
names = ['IBM', 'AAPL', 'GOOG', 'IBM', 'GOOG', 'YHOO'] unique = set(names) # unique = set(['IBM', 'AAPL','GOOG','YHOO']) 附加操作 unique.add('CAT') # 添加元素 unique.remove('YHOO') # 删除元素 s1 = { 'a', 'b', 'c'} s2 = { 'c', 'd' } s1 | s2 # 取...
fetchall() columnDes = cur.description # 获取连接对象的描述信息 columnNames = [columnDes[i][0] for i in range(len(columnDes))] df = pd.DataFrame([list(i) for i in data], columns=columnNames) cur.close() conn.close() return df except Exception as e: data = ("error with sql"...
本文将从Python生态、Pandas历史背景、Pandas核心语法、Pandas学习资源四个方面去聊一聊Pandas,期望能给答主一点启发。 一、Python生态里的Pandas 五月份TIOBE编程语言排行榜,Python追上Java又回到第二的位置。Python如此受欢迎一方面得益于它崇尚简洁的编程哲学,另一方面是因为强大的第三方库生态。 要说杀手级的库,很难...
sheets = self.wb.get_sheet_names() self.sheet = sheets[0] self.ws = self.wb[self.sheet] #获取表格的总行数和总列数 def getRowsClosNum(self): rows = self.ws.max_row columns = self.ws.max_column return rows,columns #获取某个单元格的值 ...
1#从 CSV 中读取数据2defpre_data():3#CSV61维表头名4column_names =[]56foriinrange(0, 60):7column_names.append("feature_"+str(i))8column_names.append("true_number")910#读取csv11path_csv ="../data/data_csvs/"12data = pd.read_csv(path_csv +"data_10000.csv", names=column_name...
ws = wb.get_sheet_by_name(wb.get_sheet_names()[0])row = ws.max_row ws.merge_cells("A{0}:C{0}".format(row + 1))ws['A{0}'.format(row+1)].value = "总计"ws.cell(row = row + 1, column = 4).value = "=SUM(D3:D{0})".format(row)# 保存 wb.save("population.xlsx"...
def open_workbook(path):workbook = load_workbook(filename=path)print(f'工作表名: {workbook.sheetnames}')sheet = workbook.activeprint(sheet)print(f'当前工作表名是:{sheet.title}')if__name__ =='__main__':open_workbook(r'C...