如何迭代多个列表并仅在存在时打印出来

Question

我正在尝试遍历多个列表，并发现其他列表中是否存在某个项目。 这是我的代码：

with open("Busca1.txt", "r") as f, open("CELLO1.txt","r") as f1, open("PSORT.txt","r") as f2, open("results","w+") as of :
    file_in = f.readlines()
    file_in1 = f1.readlines()
    file_in2 = f2.readlines()
    file_in3 = f3.readlines()
    for line in file_in:
        temp = line.split()
        ID_busca = temp[1]
    for line in file_in1:
        temp2 = line.split()
        ID_cello = temp2[1]
    for line in file_in2:
        temp3 = line.split()
        ID_psort = temp3[1]

        all = [i for i in ID_busca if i in ID_cello + ID_psort]
        print all

我得到的是：

['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']
['Y', 'P', '_', '2', '0', '7', '6', '8', '4', '.', '1']


So the item is split by a letter and it seems to be printed out and one item seems to be several times. 

以下是文件示例：

Busca1.txt：

C:extracellular YP_207690.1
C:plasma YP_207698.1
C:extracellular YP_207699.1
C:extracellular YP_207700.1
C:extracellular YP_207701.1
C:extracellular YP_207704.1
C:extracellular YP_207706.1
C:extracellular YP_207716.1
C:extracellular YP_207717.1
C:extracellular YP_207719.1
C:plasma YP_207722.1
C:plasma YP_207728.1
C:plasma YP_207729.1
C:extracellular YP_207731.1

大提琴1.txt：

OuterMembrane YP_008914846.1 opacity
Periplasmic YP_008914847.1 hypothetical
OuterMembrane YP_008914851.1 opacity
OuterMembrane YP_008914852.1 opacity
OuterMembrane YP_008914853.1 opacity
OuterMembrane YP_008914854.1 opacity
OuterMembrane YP_008914855.1 opacity
OuterMembrane YP_008914857.1 opacity
OuterMembrane YP_008914859.1 opacity
OuterMembrane YP_008914860.1 opacity
Periplasmic YP_008994831.1 hypothetical
Periplasmic YP_009115479.1 DNA
Extracellular YP_009115480.1 bacterioferritin-associated
OuterMembrane YP_009115486.1 pilus
InnerMembrane YP_009115487.1 hypothetical
InnerMembrane YP_009115488.1 membrane
Periplasmic YP_009115490.1 pilin
Periplasmic YP_009179204.1 hypothetical
Periplasmic YP_207190.2 leucine--tRNA

PSORT.txt：

SeqID: YP_008914846.1 opacity protein [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914847.1 hypothetical protein NGO0146a [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914848.1 hypothetical protein NGO0250a [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914849.1 hypothetical protein NGO0590a [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914851.1 opacity protein [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914852.1 opacity protein [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914853.1 opacity protein [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914854.1 opacity protein [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914855.1 opacity protein [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914857.1 opacity protein [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914859.1 opacity protein [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008914860.1 opacity protein [Neisseria gonorrhoeae FA 1090]
SeqID: YP_008994831.1 hypothetical protein NGO1621a [Neisseria gonorrhoeae FA 1090]
SeqID: YP_009115480.1 bacterioferritin-associated ferredoxin [Neisseria gonorrhoeae FA 1090

任何人都可以帮助获取代码来做我需要它做的事情吗？ 如果存在于所有当前列表中，我想打印 YP_********* 代码。

谢谢

Answer 1

你需要修正你的逻辑。 我不确定您是如何尝试完成这项工作的。 首先，您引用了一个不存在的文件f3 ； 你有一个你打算在那里of别名？ 其次，您给定的 output 并非来自您发布的代码。 请确保您的问题陈述完全准确。

至于预期的操作，请查看您的循环形式：

for line in file_in:
    temp = line.split()
    ID_busca = temp[1]

您仔细阅读文件的每一行，将其拆分，提取 ID 号，然后用最新的 ID 号覆盖之前的 ID 号。 当你退出这个循环时， ID_busca是一个简单的字符串，只有最后一个ID 号。 当你到达第二个循环结束时，你有

ID_busca = "YP_207731.1"
ID_cello = "YP_207190.2"

现在您遍历 PSORT，依次提取每个 ID。 我们来看第一个：

ID_psort = "YP_008914846.1"

现在您的列表理解逐步遍历ID_busca的每个字符，以查看该字符是否在其他两个字符串中的任何一个中。

all = [i for i in ID_busca if i in ""YP_207190.2YP_008914846.1"]

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学习一次编写少量代码。 在您知道有 ID 列表可供搜索之前，请勿尝试搜索您的 ID。 使用print语句。 在您编写的所有内容都经过测试并按预期工作之前，请不要再编写任何代码。 您发布的代码至少有四个错误。

如果您想要 ID 号列表，请制作ID 号列表：搜索有关列表和append和extend方法的在线教程。 还查sets ； 我怀疑最简单的方法是制作三组身份证号码，然后简单地取它们的交叉点。