python - 编辑 .txt 文件 - 算法不工作

Question

我想用代码自动编辑 .txt 文件。所有包含 victory_points 的内容都应被删除，并在“history={”语句之后以另一种形式输入。但最后，它添加了一个额外的 history={.为什么？

代码:

def überschreiben(filename,vp, capital):
data_out=open(filename,"r")
data_in=open(filename+"_output.txt","w")

vpsegment=False
for line in data_out:
    if "\thistory" in line:
        data_in.write(line+'\n\t\tvictory_points = { '+str(capital)+' '+str(vp)+' }\n')

    if "\t\tvictory_points" in line:
        vppivot=line
        vpsegment=True

    if vpsegment==True:
        if "}" in line:
            data_in.write("")
            vpsegment=False
        else:
            data_in.write("")
    else:
        data_in.write(line)
data_in.close()
data_out.close()

输入:

state={
id=1
name="STATE_1" # Corsica
manpower = 322900

state_category = town

history={
    owner = FRA
    victory_points = { 3838 1 }
    buildings = {
        infrastructure = 4
        industrial_complex = 1
        air_base = 1
        3838 = {
            naval_base = 3
        }
    }
    add_core_of = FRA
}

provinces={
    3838 9851 11804 
}
}

输出:

[...]

state_category = town

history={

    victory_points = { 00001 8 }
history={
    owner = FRA
    buildings = {
        infrastructure = 4
        industrial_complex = 1
        air_base = 1
        3838 = {
            naval_base = 3
        }
    }
    add_core_of = FRA
}

provinces={
    3838 9851 11804 
}
}

第二个history={从哪里来？

Answer 1

让我们看看当您阅读 history{ 行时会发生什么:

if "\thistory" in line:
    data_in.write(line+'\n\t\tvictory_points = { '+str(capital)+' '+str(vp)+' }\n')

该行包含“\thisistory”，因此它写入了这些行(它写入了第一个“history{”)和其他内容

if "\t\tvictory_points" in line:
    vppivot=line
    vpsegment=True

没有任何反应，因为该行不包含“\t\tvictory_points”

if vpsegment==True:
    if "}" in line:
        data_in.write("")
        vpsegment=False
    else:
        data_in.write("")
else:
    data_in.write(line)

vpsegment==False 所以它转到 else 语句并写下 "\thisistory{"