用python寫CSV、EXCEL檔案

標籤：and   否則   csv   logs   excel   port   寫入   frame   ade   

import pandas as pdwriter = pd.ExcelWriter(‘output.xlsx‘)df1 = pd.DataFrame(data={‘col1‘:[1,1], ‘col2‘:[2,2]})df1.to_excel(writer,‘Sheet1‘)writer.save()

 

http://www.cnblogs.com/liutongqing/p/6892099.html

import csv # 讀取csv檔案方式1csvFile = open("csvData.csv", "r")reader = csv.reader(csvFile)  # 返回的是迭代類型data = []for item in reader:    print(item)    data.append(item) print(data)csvFile.close() # 讀取csv檔案方式2with open("csvData.csv", "r") as csvfile:    reader2 = csv.reader(csvfile) # 讀取csv檔案，返回的是迭代類型    for item2 in reader2:        print(item2)csvFile.close() # 從列表寫入csv檔案csvFile2 = open(‘csvFile2.csv‘,‘w‘, newline=‘‘) # 設定newline，否則兩行之間會空一行writer = csv.writer(csvFile2)m = len(data)for i in range(m):    writer.writerow(data[i])csvFile2.close() # 從字典寫入csv檔案dic = {‘張三‘:123, ‘李四‘:456, ‘王二娃‘:789}csvFile3 = open(‘csvFile3.csv‘,‘w‘, newline=‘‘) writer2 = csv.writer(csvFile3)for key in dic:    writer2.writerow([key, dic[key]])csvFile3.close()

 

用python寫CSV、EXCEL檔案