Python 将字符串中的某些内容转换为变量

Question

I want to do an output name for a file and the input will/should be like this:

"seriesName Episode epNr 720p"

and I want to turn the seriesName and the epNr to variables I set. For example:

seriesName="Mr. Robot"
epNr=10

and if I do print(output), the output should be

"Mr. Robot Episode 10 720p"

Answer 1

Try using str.replace :

myString = "seriesName Episode epNr 720p"
replacedString = myString.replace('seriesName', 'Mr. Robot').replace('epNr', '10')
print(replacedString)

Or better yet, use str.format with keyword arguments:

In [1]: myString = "{seriesName} Episode {epNr} 720p"    
In [2]: myString.format(seriesName='Mr. Robot', epNr='10')
Out[3]: 'Mr. Robot Episode 10 720p'

Answer 2

A more general way of achieving the same:

seriesName="Mr. Robot"
epNr=10

print "{} Episode {} 720p".format(seriesName,epNr)