一、Python操作Json文件

import json# json中使用雙引號(hào) data={'aa':11,'bb':22,'cc':'33' } # 字典轉(zhuǎn)化json print(json.dumps(data)) # 轉(zhuǎn)化為json格式 # 字典寫(xiě)入json文件 with open('05_data.json','w') as f:json.dump(data,f) # json格式轉(zhuǎn)字典格式 json_data='{"ee":"11","rr":"pp","oo":22}' print(json.loads(json_data)) # 讀出json文件，讀出為字典格式 with open("05_data.json",'r') as f:print(json.load(f))

二、Python操作Csv文件

import csv# 讀取csv with open('test.csv','r',encoding='utf-8') as f:f_csv=csv.reader(f)next(f_csv) # 跳過(guò)第一行輸出for line in f_csv:print(line) # 寫(xiě)入csv # row=[('python','3.7'),('c++','2.0'),('html','6')] # with open("06_test.csv",'a+') as f: # data=csv.writer(f) # data.writerows(row) # 讀寫(xiě)字典 with open('test.csv','r') as f:f_read=csv.DictReader(f)for i in f_read:print(i) # 寫(xiě)入字典 header=['A','B','C'] rows=[{'A':'a','B':'b','C':'c'},{'A':'1','B':'2','C':'3'},{'A':'5','B':'6','C':'7'}] with open('06_dict.csv','a+') as f:f_csv=csv.DictWriter(f,header)f_csv.writeheader() # 寫(xiě)入標(biāo)題f_csv.writerows(rows)

三、Python操作Excel文件

import xlwt # 寫(xiě)入Excel import xlrd # 讀取Exceldef create():# 創(chuàng)建ExcelExcel_book=xlwt.Workbook()# 創(chuàng)建一個(gè)sheetsheet=Excel_book.add_sheet('test01')# 在第一行第一列寫(xiě)入文字‘Python’# sheet.write(0,0,'Python')t=1for i in range(3):for j in range(3):sheet.write(i,j,t)t+=1Excel_book.save('07_test.xlsx') def get_data():data=xlrd.open_workbook('07_test.xlsx')# 獲取第一個(gè)sheetsheet=data.sheets()[0]# 獲取行數(shù)和列數(shù)rows=sheet.nrows # 行cols=sheet.ncols # 列# 獲取行數(shù)據(jù)for i in range(rows):print(sheet.row_values(i))# 獲取列數(shù)據(jù)for j in range(cols):print(sheet.col_values(j))# 獲取指定單元格數(shù)據(jù)print(sheet.cell_value(0,0)) if __name__ == '__main__':create()get_data()

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