我有来自@Snowmonkey
的代码
static void Sakiniai (string fv, string skyrikliai)
{
char[] skyrikliaiSak = { '.', '!', '?' };
string[] lines = File.ReadAllLines(fv, Encoding.GetEncoding(1257));
string naujas = "";
foreach (string line in lines)
{
naujas += line;
naujas += " ";
}
string[] sakiniai = naujas.Split(skyrikliaiSak);
for(int i = 0; i < sakiniai.Length; i++)
{
Console.WriteLine(sakiniai[i]);
}
}
当单击添加行按钮时代码添加新行。我想在按钮上添加一个类似的功能＆＃39;删除行＆＃39;。如果单击它，我希望删除最后一行，而不影响其他文本框中的内容。我试过这个，但它不起作用：
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
$(function() {
$("#submitBtn").on("click", submitted);
// Created an 'add new row' button, which non-destructively adds a row to the container.
$(".add-row-btn").on("click", function(evt) {
evt.preventDefault();
evt.stopPropagation();
$(".container").append(createNewRow());
})
// When the user chooses a different number, completely reset all the rows?
$('#amount').on('change', function() {
// Save a reference to the row container.
var containerEl = $(".container");
// wipe out completely the contents of the container.
containerEl.empty();
// get the number of rows to be created.
var startingNumberOfLines = parseInt($("#amount").val());
// loop the number of times requested, and append a new row each time.
// createNewRow() is defined below.
for (var i = 0; i < startingNumberOfLines; i++) {
$(".container").append(createNewRow());
}
});
// Start with an initial value.
$(".add-row-btn").trigger("click");
})
/*****
* createNewRow() -- function to create a new row, composed of a text input,
* and two labels containing number inputs.
*****/
var createNewRow = function() {
/****
* first, we'll define all the elements that will be placed
* in this row -- the text input, the labels and the inputs.
****/
var lineTitleEl = $("<input>").attr("placeholder", "enter text here")
.addClass("line-title");
var labelEl = $("<label>");
var inputEl = $("<input>").attr("step", "0.05").attr("type", "number")
.addClass("line-number");
// The firstNumberEl is a label containing an input. I can simply
// clone my label el, and input el, and use them. Don't need to,
// but i CAN.
var firstNumberEl = labelEl.clone();
firstNumberEl.text("number1: ").attr("class", "first-number-el").append(inputEl.clone());
var secondNumberEl = labelEl.clone();
secondNumberEl.text("number2: ").attr("class", "second-number-el").append(inputEl.clone());
// Now create the row, which is a div containing those elements.
var newRowEl = $("<div>").append(lineTitleEl, firstNumberEl, secondNumberEl);
// Simply return that row -- the user can send it to the console or
// can append it wherever they like.
return newRowEl;
}
/******
* submitted() -- function to handle the submit button. We want to
* iterate over all the rows, and given that they now have a consistent
* format, parse out the required data and display it.
******/
function submitted() {
console.log("submitted");
$(".container").children("div").each(function() {
var title = $(this).find(".line-title").val();
var firstNum = $(this).find(".first-number-el input").val();
var secondNum = $(this).find(".second-number-el input").val();
console.log(title + ", " + firstNum + ", " + secondNum);
})
}
</script>
<style>
.line-title {
width: 259px;
margin: 0px;
height: 15px;
clear: left;
}
.line-number {
width: 45px;
}
.container {
margin: 10px;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<fieldset style=" margin: 0 0 5px 0;">
<!--<div>enter amount of text + number boxes:
<input id="amount" step="1" style=" width: 45px;" type="number" value="1">
</div>-->
<div class="container">
</div>
<button class="add-row-btn">
Add row
</button>
<button class="remove-row-btn">
Remove row
</button>
<input class="button" id="submitBtn" style="margin-left: 85%;" type="button" value="Submit">
</fieldset>
</form>我该怎么做？ 感谢。
答案 0 :(得分：1)
您可以索引最后一个元素并将其删除。
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
$(function() {
$("#submitBtn").on("click", submitted);
// Created an 'add new row' button, which non-destructively adds a row to the container.
$(".add-row-btn").on("click", function(evt) {
evt.preventDefault();
evt.stopPropagation();
$(".container").append(createNewRow());
})
$(".remove-row-btn").on("click", function(evt) {
evt.preventDefault();
evt.stopPropagation();
$(".container div").eq($(".container div").length - 1).remove();
})
// When the user chooses a different number, completely reset all the rows?
$('#amount').on('change', function() {
// Save a reference to the row container.
var containerEl = $(".container");
// wipe out completely the contents of the container.
containerEl.empty();
// get the number of rows to be created.
var startingNumberOfLines = parseInt($("#amount").val());
// loop the number of times requested, and append a new row each time.
// createNewRow() is defined below.
for (var i = 0; i < startingNumberOfLines; i++) {
$(".container").append(createNewRow());
}
});
// Start with an initial value.
$(".add-row-btn").trigger("click");
})
/*****
* createNewRow() -- function to create a new row, composed of a text input,
* and two labels containing number inputs.
*****/
var createNewRow = function() {
/****
* first, we'll define all the elements that will be placed
* in this row -- the text input, the labels and the inputs.
****/
var lineTitleEl = $("<input>").attr("placeholder", "enter text here")
.addClass("line-title");
var labelEl = $("<label>");
var inputEl = $("<input>").attr("step", "0.05").attr("type", "number")
.addClass("line-number");
// The firstNumberEl is a label containing an input. I can simply
// clone my label el, and input el, and use them. Don't need to,
// but i CAN.
var firstNumberEl = labelEl.clone();
firstNumberEl.text("number1: ").attr("class", "first-number-el").append(inputEl.clone());
var secondNumberEl = labelEl.clone();
secondNumberEl.text("number2: ").attr("class", "second-number-el").append(inputEl.clone());
// Now create the row, which is a div containing those elements.
var newRowEl = $("<div>").append(lineTitleEl, firstNumberEl, secondNumberEl);
// Simply return that row -- the user can send it to the console or
// can append it wherever they like.
return newRowEl;
}
/******
* submitted() -- function to handle the submit button. We want to
* iterate over all the rows, and given that they now have a consistent
* format, parse out the required data and display it.
******/
function submitted() {
console.log("submitted");
$(".container").children("div").each(function() {
var title = $(this).find(".line-title").val();
var firstNum = $(this).find(".first-number-el input").val();
var secondNum = $(this).find(".second-number-el input").val();
console.log(title + ", " + firstNum + ", " + secondNum);
})
}
</script>
<style>
.line-title {
width: 259px;
margin: 0px;
height: 15px;
clear: left;
}
.line-number {
width: 45px;
}
.container {
margin: 10px;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<fieldset style=" margin: 0 0 5px 0;">
<!--<div>enter amount of text + number boxes:
<input id="amount" step="1" style=" width: 45px;" type="number" value="1">
</div>-->
<div class="container">
</div>
<button class="add-row-btn">
Add row
</button>
<button class="remove-row-btn">
Remove row
</button>
<input class="button" id="submitBtn" style="margin-left: 85%;" type="button" value="Submit">
</fieldset>
</form>