python生成以及打开json、csv和txt文件的实例 生成txt文件: mesg = "hello world" with open("test.txt", "w") as f: f.write("{}".format(mesg)) print("加载完成!") 生成json文件: import json mesg = {"key": "value"} with open("test.json", "w") as f: json.dump(mesg, f) print("加载完成!") 生成csv文件: import csv with open("test.csv", "w") as f: fieldnames = ["name", "age"] # 表的列名 writer = csv.DictWriter(f, fieldnames=fieldnames) writer.writeheader() # 加上表头 writer.writerow({"name": "shannon-li", "age": 4}) # 按行添加 print("加载完成!") 打开txt文件: with open("test.txt") as f: content = f.read() print("文件内容:{}".format(content)) 打开json文件: import json import sys with open("test.json") as f: try: content = json.load(f) print("文件内容:{}".format(content)) except TypeError: sys.exit("Error on load json file.") 打开csv文件: import csv import sys content = [] with open("test.csv") as f: reader = csv.DictReader(f, delimiter=",", quotechar="|") try: for row in reader: content.append({"name": row["name"], "age": row["age"]}) print("文件内容:".format(content)) except csv.Error as e: sys.exit("file %s, line %d: %s" % (f, reader.line_num, e)) 以上这篇python生成以及打开json、csv和txt文件的实例就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持中文源码网。