1

下面给出的代码将图像大小调整为 160x160,适用于 Firefox 和 Chrome,但不适用于 Internet Explorer。为什么?

$(document).ready(function() {
    $('#imagePreview img').each(function() {
        $('#imagePreview img').each(function() {
            var maxWidth = 160;             // Max width for the image
            var maxHeight = 160;            // Max height for the image
            var ratio = 0;                  // Used for aspect ratio
            var width = $(this).width();    // Current image width
            var height = $(this).height();  // Current image height

            // Check if the current width is larger than the max
            if(width > maxWidth){
                ratio = maxWidth / width;   
                $(this).css("width", maxWidth);         // Set new width
                $(this).css("height", height * ratio);  // Scale height based on ratio
                height = height * ratio;                // Reset height to match scaled image
                width = width * ratio;                  // Reset width to match scaled image
            }

            // Check if current height is larger than max
            if(height > maxHeight){
                ratio = maxHeight / height; 
                $(this).css("height", maxHeight);   // Set new height
                $(this).css("width", width * ratio);    // Scale width based on ratio
                width = width * ratio;    // Reset width to match scaled image
            }
        }); 
    });
});
4

1 回答 1

4

您无需等待加载图像,因此不能保证它们具有大小(取决于它们是否被缓存)。

你应该更换

$(document).ready(function() {

$(document).load(function() {

话虽这么说,看起来你可以用这种风格替换整个:

#imagePreview img {
   max-width: 160px;
   max-height: 160px;
}

(见示范

于 2013-02-26T07:27:46.990 回答