I am trying to create a mapping that will allow me to select a line of text non linewise so I can paste at curosr(not before or after) without introducing spaces that may have preceeded the line where it was yanked from.
This is what I was trying to do
"copy non linewise
nmap <leader>yy 0y$
我安装了pony.vim
我找不到任何关于如何使用它的文档.我是通过vundle gmarik vundle安装的
如果我输入任何这些,我也没有得到任何帮助
:helptags pony
:helptags pony-vim
有人使用它并可以提供帮助吗？
您能否建议一种将变量的值应用于从元素 6 到变量定义的结尾的列表的方法？
也许我的代码会更好地解释它（Python 3）
#get user input as to size of range
range_size = 0
if range_size == 0:
try:
range_size = int(input('Size of Range?: '))
except ValueError:
print('That was not an integer!')
range_size = 0
#set base value for each number in range_size
base_value = int(100 / range_size)
print(base_value)
#create list of base values
num_weighted = [base_value] * range_size
num_weighted[0] = round(base_value * 1.8, 1)
num_weighted[1] = round(base_value * 1.6, 1)
num_weighted[2] = round(base_value * 1.5, 1)
num_weighted[3] …如何将数组切片分配给新数组.我试图将最大连续的相等元素分配给一个新数组.
我认为我有基本的逻辑权利但不能切换到新的数组.这是Arrays中的练习4 - 使用c#进行计算机编程的基础知识.
using System;
using System.Collections.Generic;
class ArrayEx4
{
static void Main()
{
int[] testArray = { 1, 1, 2, 3, 2, 2, 2, 1 }; // Output wanted {2,2,2};
int count = 0;
int bestCount = 0;
int startArray = 0;
int endArray = 0;
int first = 0;
for (int i = 0; i < testArray.Length; i++)
{
if (testArray[i] == testArray[i+1])
{
count += 1;
i = first;
if (count > bestCount)
{
count = …我想使用scrapy抓取我在Downloads文件夹中找到的本地xml文件,使用xpath提取相关信息.
使用scrapy介绍作为指导
2016-01-24 12:38:53 [scrapy] DEBUG: Retrying <GET file://home/sayth/Downloads/20160123RAND0.xml> (failed 2 times): [Errno 2] No such file or directory: '/sayth/Downloads/20160123RAND0.xml'
2016-01-24 12:38:53 [scrapy] DEBUG: Gave up retrying <GET file://home/sayth/Downloads/20160123RAND0.xml> (failed 3 times): [Errno 2] No such file or directory: '/sayth/Downloads/20160123RAND0.xml'
2016-01-24 12:38:53 [scrapy] ERROR: Error downloading <GET file://home/sayth/Downloads/20160123RAND0.xml>
我已经尝试了下面的几个版本但是我无法获得启动URL接受我的文件.
# -*- coding: utf-8 -*-
import scrapy
class MyxmlSpider(scrapy.Spider):
name = "myxml"
allowed_domains = ["file://home/sayth/Downloads"]
start_urls = (
'http://www.file://home/sayth/Downloads/20160123RAND0.xml',
)
def parse(self, response):
for file in response.xpath('//meeting'):
full_url = response.urljoin(href.extract()) …我有一个由11个元素组成的数组.我想把奇数元素加在一起,包括第一个和最后一个元素作为一个标量,而另一个元素作为另一个元素.
这是我的代码我试图使用map为每个索引添加2来实现结果,但我想我错了.
use strict;
use warnings;
use Data::Dumper;
print 'Enter the 11 digiet serial number: ';
chomp( my @barcode = //, <STDIN> );
my @sum1 = map { 2 + $_ } $barcode[1] .. $barcode[11];
my $sum1 = sum Dumper( \@sum1 );
# sum2 = l2 + l4 + l6 + r8 + r10;
printf "{$sum1}";
实现这一目标的好方法是什么？
我想要实现的是在列中返回唯一值（字符串）的列表。将该列表放入数组中，然后将值列表粘贴到新的工作表（例如A列）中。然后，对每个数组元素计数出现原始列表的次数，并针对新数组返回B列中其频率的计数它的唯一字符串。
到目前为止，这是我的代码。
Sub UniqueList()
Dim rListPaste As Range
Dim causeList As Range
Dim iReply As Integer
Dim element As Variant
On Error Resume Next
Set rListPaste = Application.InputBox _
(Prompt:="Please select the destination cell", Type:=8)
If rListPaste Is Nothing Then
iReply = MsgBox("No range nominated," _
& " terminate", vbYesNo + vbQuestion)
If iReply = vbYes Then Exit Sub
End If
causeList = Range("E1", Range("E65536").End(xlUp))
Range("causeList").AdvancedFilter Action:=xlFilterCopy, Unique:=True
Range("causeList").AdvancedFilter CopyToRange:=causeList.Cells(1, 1)
element = 0
For Each element In causeList
element …我尝试编写并运行我的第一个nimrod程序fizzbuzz.
Nimrod是从git和版本安装的.
[sayth nimrod]$ nimrod --version
Nimrod Compiler Version 0.9.4 (2014-04-28) [Linux: amd64]
Copyright (c) 2006-2014 by Andreas Rumpf
所以这是一个fizzbuzz
proc fizzBuzz(x, y: int) =
for i in x .. y:
if i mod 15 == 0:
echo("FizzBuzz")
elif i mod 3 == 0:
echo("Fizz")
elif i mod 5 == 0:
echo("Buzz")
else:
echo(i)
我编译成c(有更好的选择吗？),它对我来说似乎没问题.
[sayth nimrod]$ nimrod c fizzbuzz.nim
config/nimrod.cfg(37, 2) Hint: added path: '/home/sayth/.babel/pkgs/' [Path]
Hint: used config file '/home/sayth/Nimrod/config/nimrod.cfg' [Conf]
Hint: system [Processing]
Hint: fizzbuzz [Processing]
fizzbuzz.nim(1, …我创建一个带有主键和自动增量的表。
with open('RAND.xml', "rb") as f, sqlite3.connect("race.db") as connection:
c = connection.cursor()
c.execute(
"""CREATE TABLE IF NOT EXISTS race(RaceID INTEGER PRIMARY KEY AUTOINCREMENT,R_Number INT, R_KEY INT,\
R_NAME TEXT, R_AGE INT, R_DIST TEXT, R_CLASS, M_ID INT)""")
然后我想插入一个元组，它的数量当然比总列数少 1，因为第一个是自动增量。
sql_data = tuple(b)
c.executemany('insert into race values(?,?,?,?,?,?,?)', b)
我该如何停止这个错误。
sqlite3.OperationalError: table race has 8 columns but 7 values were supplied
我想以格式接受命令行上的用户日期
日/月/年
然后将日期输出给用户
YYYY/MM/DD
我试图使用Date :: Parse模块解析为要重新打印的日期.
该日期:解析文档显示,我应该能够从用户输入中得到$日,月$ $和一年.
use Date::Parse;
$time = str2time($date);
($ss,$mm,$hh,$day,$month,$year,$zone) = strptime($date);
这是我目前的代码:
use strict;
use Date::Parse;
print "Enter a date in dd/mm/yyy format: ";
my $user_date = <STDIN>;
my @date = strptime($user_date);
# ( $day, $month, $year ) = strptime($user_date);
# my $user_day = ( ($day) = strptime($user_date) );
print "%Y/%m/%d", @date;
但是,打印失败并且从输出中看到输入10中的10个输出为9.
产量
Enter a date in dd/mm/yyy format: 16/10/1952
%Y/%m/%d1952916s
我该怎么办？