读取行的特定部分并存储它

Question

I have a file(text) which contains data and below is one of the lines from the file

"xiakuram_4bitaddrk1.xifull_addrk2.xx1.xxdrv.xmna.mn1 0.0000e+00 5.0000e-07 5.0000e-07 Vd = (1.456e-05, 1.479e-05) Vg = (1.08, 1.08) Vs = (0, 0) Vb = (0, 0)"

I only want to extract 5.0000e-07 from the line.(using python)

Can anyone help me with this?

Answer 1

Assuming the number you want to extract is always right before Vd :

• split the string into a list with a space separator
• take the value just before Vd in the list

In python:

data = "xiakuram_4bitaddrk1.xifull_addrk2.xx1.xxdrv.xmna.mn1 0.0000e+00 5.0000e-07 5.0000e-07 Vd = (1.456e-05, 1.479e-05) Vg = (1.08, 1.08) Vs = (0, 0) Vb = (0, 0)" 
word_list = data.split(" ") 
time_period = word_list[word_list.index("Vd")-1]
print(time_period)

Output:

5.0000e-07