Question

我目前有一个for循环，它将替换文本文件中的字符串，但我希望它们使用我已定义的变量替换这些字符串。

k_constant_vec = [.15707963267,.2221441469,.31415926535,.35124073655,.44428829381,.88857658763,1.33286488145];

for t in range(1, len(k_constant_vec)):

     infile = open('/home/john/projects/simplecodes/textreplace/ex22.i')

     outfile = open('/home/john/projects/simplecodes/textreplace/newex22-[t].i', 'w')

     replacements = {'k_constant = k_constant_vec[t-1]':'k_constant = k_constant_vec[t]','file_base = out':'file_base = out-[t]'}
        for line in infile:
            for src, target in replacements.iteritems():
                     line = line.replace(src, target)
            outfile.write(line)
            infile.close()
            outfile.close()

我基本上想要使用for循环来创建一堆新的.i文件。例如，这将创建7 .i文件，标记为newex22-1，newex22-2，等等，每个文件都有不同的k_constant = k_constant_vec[1]，k_constant = k_constant_vec[2]，其中替换了ect字符串。

由于

Answer 1

您的代码存在一些小错误/样式问题。它还不清楚为什么你有虚弱。以下是我认为你想要做的更加pythonic的方式：

k_constant_vec = [.15707963267,.2221441469,.31415926535,.35124073655,.44428829381,.88857658763,1.33286488145];
file_prefix = '/home/john/projects/simplecodes/textreplace/newex22-[%s].i'
for index in range(len(k_constant_vec)):
  with open(file_prefix % (index + 1), 'wb') as f:
    f.write('k_constant = %s' % k_constant_vec[index])

Answer 2

我实际解决了它，我会发布我在这里做的事情，以防有人搜索到类似的问题。我使用了乔治建议结合在for循环中使用％s和％。

k_constant_vec = [.15707963267,.2221441469,.31415926535,.35124073655,.44428829381,.88857658763,1.33286488145];

for t in range(0,len(k_constant_vec)):
    infile = open('/home/john/projects/simplecodes/textreplace/ex22.i')
    outfile = open('/home/john/projects/simplecodes/textreplace/newex22-'+repr(t)+'.i', 'w')
    replacements = {'k_constant = .15707963267':'k_constant = %s' % k_constant_vec[t],'file_base = out':'file_base = out-'+repr(t)}
    #use default k_constant from ex22.i file
    for line in infile:
        for src, target in replacements.iteritems():
            line = line.replace(src, target)
        outfile.write(line)
    infile.close()
    outfile.close()

使用infile的重点是保留文本文件的格式。

数组值为字符串

2 个答案: