通過readline()我讀取了一個包含字母和數(shù)字的txt文件。在txt文件中，第一行是 18 20 8.9354 0 0，我以這種方式讀取它import tkinter as tkfrom tkinter import filedialogroot = tk.Tk()root.withdraw()file_path = filedialog.askopenfilename()f = open(file_path)with open(file_path) as fp: first_line = fp.readline() A = first_line[1:3] B = first_line[4:6] C = first_line[7:13] D = first_line[14]問題是所有數(shù)字都是字符串，如果我嘗試這樣做，A+B我會得到1820而不是40如何在本地修復(fù)它（僅適用于實際包含數(shù)字的行）？非常感謝
1 回答
catspeake
TA貢獻1111條經(jīng)驗 獲得超0個贊
我將在此處使用字符串拆分以及列表理解來將每個字符串數(shù)字映射到真正的浮點數(shù)：
with open(file_path) as fp:
first_line = fp.readline()
nums = first_line.split(' ')
results = [float(i) for i in nums]
A = results[0]
B = results[1]
C = results[2]
D = results[3]
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