如何删除Notepad ++中每行的所有文本，但最后3个字符

Question

我想删除Notepad ++中除最后3个字符以外的所有文本。所以，例如，如果我有：

783223748foo
blahblahI'm
sfdhello

应该成为：

foo
I'm
llo

Answer 1

您可以尝试以下查找和替换：

<强>查找

       for (int i = 0; i < bytes.Length; i++)
        {
            Console.WriteLine(bytes[i]);
        }

<强>替换

byte[] bytes = { 1, 2, 3 };
foreach(byte b in bytes)
{
    Console.Write(b);
}

模式>>> import ROOT >>> f = ROOT.TFile("../Ntuple/v0406_default_1012p2_101X_dataRun2_Express_v7_Fill6573_Ntuple.root") >>> f.ls() TFile** ../Ntuples/v0406_default_1012p2_101X_dataRun2_Express_v7_Fill6573_Ntuple.root TFile* ../Ntuples/v0406_default_1012p2_101X_dataRun2_Express_v7_Fill6573_Ntuple.root KEY: TTree trajTree;1 Trajectory measurements in the Pixel detector. KEY: TTree eventTree;1 The event. KEY: TTree clustTree;1 Pixel clusters. KEY: TTree trajROCEfficiencyTree;1 ROC and module efficiencies. >>> t = f.Get("trajTree") >>> t.Print() ****************************************************************************** *Tree :trajTree : Trajectory measurements in the Pixel detector. * *Entries : 42180482 : Total = 31858466801 bytes File Size = 8076610485 * * : : Tree compression factor = 3.94 * ****************************************************************************** *............................................................................* *Br 5 :clust_pix : pix[size][2]/F * *Entries : 42180482 : Total Size= 1597865089 bytes File Size = 569202378 * *Baskets : 12058 : Basket Size= 2175488 bytes Compression= 2.81 * *............................................................................* *Br 7 :traj : validhit/I:missing:lx/F:ly:lz:glx:gly:glz:clust_near/I:* * | hit_near:pass_effcuts:alpha/F:beta:norm_charge:d_tr:dx_tr:dy_tr: * * | d_cl:dx_cl:dy_cl:dx_hit:dy_hit:onedge/I:lx_err/F:ly_err/F * *Entries :42180482 : Total Size= 4220749516 bytes File Size = 2508894561 * *Baskets : 28411 : Basket Size= 2275840 bytes Compression= 1.68 * *............................................................................* >>> t.clust_pix <read-write buffer ptr 0x7fba04428200, size 514 at 0x115e5ecf0> >>> t.traj Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'TTree' object has no attribute 'traj' >>> t.traj.beta Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'TTree' object has no attribute 'traj' 匹配整行，但在消耗行中的最后三个字符之前会暂停。前瞻^.*(?=.{3}$)$ 确保不会替换最后三个字符。