Question

我有一个.txt文件，其中包含一个表格，例如：

对象大小数量

1 2 3

2 10 3

3 4 1

4 5 2

5 12 1

6 6 2

7 17 4

8 19 2

9 9 3

10 14 2

Image of Table for reference

我已使用以下代码将此表带到Python：

import numpy as np

X = np.loadtxt('table1.txt', skiprows=1)
print(X)

现在，我想删除“大小”小于10的所有行。然后，我想看到省略了这些行的“新”表。如何使用Python做到这一点？

谢谢，Q

Answer 1

除了@Mark Meyer的评论/答案，这是我在Python中的方法。

with open('sample.txt','r') as f:
        c = f.readlines()

c = [ x.strip('\n').split() for x in c[2:]  if x.strip('\n') !='']
# Assign elements to a list [['1', '2', '3'], ['2', '10', '3'] ...

min_number = 10 # ciriteria

c = [c[index] for index, value in enumerate(c) if int(value[1]) > min_number ]
# Keep elements that respect the criteria [['5', '12', '1'] ...
# If you want to keep 10 too, modify list comprehension to >=

# Write output to same file
with open('sample.txt','w') as f:
    for iter, each_line in enumerate(c): # resetting the row number to 1,2, ..
        f.write('{}\t{}\t{}\n'.format( iter+1,each_line[1],each_line[2] ) )

Python：使用导入的表（.txt文件）并省略某些值的编辑

1 个答案: