很抱歉我的英語很糟糕，而且我是一個絕對的初學者，但是我該如何進行這項作業
<html>
<title>form</title>
<script type = "text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.2/jspdf.min.js"></script>
<script type= "text/javascript">
function genPDF() {
var doc = new jsPDF();
doc.text(45,45, "burgerking");
doc.addImage(imgData, 'JPEG',0.25, 0.25, 210, 300);
doc.addPage();
doc.addImage(imgData, 'JPEG',0.25, 0.25, 210, 300);
doc.addPage();
doc.addImage(imgData, 'JPEG',0.25, 0.25, 210, 300);
if (document.getElementById("ice-cream").value == "choco") {
doc.text(50,65, "please work")
}
else {
doc.text(50,65, "knowing that you'll learn stuff when");
doc.text(50,69, "failing miserably, you're filled with xd");
}
doc.save('form.pdf')
}
</script>
<div>
<label>what kind of ice cream do you want?```<br>
<select id="ice-cream" onchange="genPDF()">```<br>
<option value="vani"> Vanilla </option>```<br>
<option value="choco"> Chocolate </option>```<br>
</select><br><br>
</div>
顯然，代碼不起作用，所以任何人都可以幫忙;-;
uj5u.com熱心網友回復：
這是作業代碼。你檢查了imgData. 那是破壞代碼。我只是評論和它的作業。還要檢查 PDF 的最后一頁。
<html>
<title>form</title>
<script type = "text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.3.2/jspdf.min.js"></script>
<script type= "text/javascript">
function genPDF() {
var doc = new jsPDF();
doc.text(45,45, "burgerking");
//doc.addImage(imgData, 'JPEG',0.25, 0.25, 210, 300);
doc.addPage();
//doc.addImage(imgData, 'JPEG',0.25, 0.25, 210, 300);
doc.addPage();
//doc.addImage(imgData, 'JPEG',0.25, 0.25, 210, 300);
alert(document.getElementById("ice-cream").value)
if (document.getElementById("ice-cream").value == "choco") {
alert('ere');
doc.text(50,65, "please work")
}
else {
doc.text(50,65, "knowing that you'll learn stuff when");
doc.text(50,69, "failing miserably, you're filled with xd");
}
doc.save('form.pdf')
}
</script>
<div>
<label>what kind of ice cream do you want?```<br>
<select id="ice-cream" onchange="genPDF()">```<br>
<option value="vani"> Vanilla </option>```<br>
<option value="choco"> Chocolate </option>```<br>
</select><br><br>
</div>
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標籤：javascript html pdf jspdf jspdf-autotable
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