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。