javascript 如何使用 base64 设置图像源
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How can I set Image source with base64
提问by poppel
I want to set the Image source to a base64 source but it does not work:
我想将 Image 源设置为 base64 源，但它不起作用：
<img id="img" src="" />
the JavaScript
JavaScript
document.getElementById("img").src = "data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg=="
回答by Kevin Boucher
Try using setAttributeinstead:
尝试使用setAttribute：
document.getElementById('img')
.setAttribute(
'src', 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=='
);
Real answer:(And make sure you remove the line-breaks in the base64.)
真正的答案：（并确保删除 base64 中的换行符。）
回答by Faris Zacina
In case you prefer to use jQuery to set the image from Base64:
如果您更喜欢使用 jQuery 从 Base64 设置图像：
$("#img").attr('src', 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==');
回答by zzart
img = new Image();
img.src = "data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
img.outerHTML;
"<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==">"
回答by Matías Damonte
Your problem are the cr (carriage return)
你的问题是 cr（回车）
http://jsfiddle.net/NT9KB/210/
http://jsfiddle.net/NT9KB/210/
you can use:
您可以使用：
document.getElementById("img").src = "data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
