with open()函数中,如何在文件名设置中引用变量(python)

name = "wangyang"
age = "25"

with open("C:/Users/mike1/Desktop/name_age.txt", "w", encoding = "utf-8") as f1:
    f1.write("hellow world")


    

这么写是不行的,文件名是name_age.txt,而不是wangyang_25.txt.

如下图:

正确的方式应该是用format()函数

name = "wangyang"
age = "25"

with open("C:/Users/mike1/Desktop/{0}_{1}.txt".format(name, age), "w", encoding = "utf-8") as f1:
    f1.write("hellow world")

如下图所示:

 

关于format() 的一些基本的用法:

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转载自www.cnblogs.com/zijidefengge/p/12089305.html
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