我试图使用sed删除与特定模式和后续所有行匹配的行,直到找到另一个模式。
例如:
This is a line I want to delete,
this is second line that should be deleted.
And this is stop-pattern which should terminate deletion.
我想删除给sed两种模式/delete,/ (这是应该删除的起始模式和包含该模式的整行)和/(这是决定停止删除的点的模式)的整个段落。
如何编写能够完成这一任务的sed命令?
我很好奇为什么这两段代码会给出不同的输出
#include <iostream>
using namespace std;
int main(){
char *arr=new char;
arr="monday";
cout<<arr<<endl;//gives the output "monday"
char *newArr=new char[3];//i want array of three pointers not the size of a string to be 2+1
String a = new String("Wow");
String b = new String("Wow");
String sameA = a;
boolean r1 = a == b; // This is false, since a and b are not the same object
boolean r2 = a.equals(b); // This is true, since a and b are logically equals
boolean r3 = a == sameA; // This is true, si
我试图在swift中组合多个nsstring比较选项,以便在方法string.range(of:)中使用,但我得到了一个错误: Referencing operator function '|' on 'BinaryInteger' requires that 'NSString.CompareOptions' conform to 'BinaryInteger' 这就是我创建选项的方式: let options = NSString.CompareOptions.diacriticInsensitive | N
#include <stdio.h>
int main()
{
float f;
f = 0.4;
if(f<0.4)
printf("It is less");
if(f>0.4)
printf("It is greater");
if(f==0.4)
printf("It is equal");
}
我无法理解为什么输出显示“它更大”。
我得到的0.4转换为二进制表示是0x3ECCCCCD,这是4.0000000596046447753
有人愿意解释一下为什么这两段代码显示出不同的结果吗?
VB.NET v4.0
Dim p As Integer = 16
Dim i As Integer = 10
Dim y As Integer = p / i
//Result: 2
C# v4.0
int p = 16;
int i = 10;
int y = p / i;
//Result: 1
我有两段代码。
Nr 1:
add_action( 'woocommerce_review_order_after_submit', 'add_after_checkout_button' );
function add_after_checkout_button() {
echo '<p class="text-under-place-order">By clicking on the purchase button, you agree to our <a href="https://www.exampl
我有一个正在增长的node.js服务器应用程序,我想将它分成几个文件。下面是一个工作代码片段,演示单块server.js的大致样子:
var express = require('express');
var app = express();
// other initialization code etc
//************** start of part to be moved foo.js
var fooTestData = {data: "data", id:1};
app.get("/foo/ajax", functio