Python-将字符串打印到文本文件

text_file = open("Output.txt", "w")text_file.write("Purchase Amount: %s" % TotalAmount)text_file.close()

如果使用上下文管理器，则将自动为你关闭文件

with open("Output.txt", "w") as text_file:    text_file.write("Purchase Amount: %s" % TotalAmount)

如果你使用的是Python2.6或更高版本，则最好使用

str.format()

with open("Output.txt", "w") as text_file:    text_file.write("Purchase Amount: {0}".format(TotalAmount))

对于python2.7及更高版本，你可以使用

{}

{0}

在Python3中，

file

print

with open("Output.txt", "w") as text_file:    print("Purchase Amount: {}".format(TotalAmount), file=text_file)

Python3.6引入了f字符串作为另一种选择

with open("Output.txt", "w") as text_file:    print(f"Purchase Amount: {TotalAmount}", file=text_file)