分类 默认分类 下的文章

<html>
<head>
  <meta charset="utf-8">
  <title>通过filereader接口读取文件</title>
  <script type="text/javascript">
    function getBase64Image(img) {
        var canvas = document.createElement("canvas");
        canvas.width = img.width;
        canvas.height = img.height;
        var ctx = canvas.getContext("2d");
        ctx.drawImage(img, 0, 0, img.width, img.height);
        var dataURL = canvas.toDataURL("image/png");
        return dataURL
        // return dataURL.replace("data:image/png;base64,", "");
    }

    function main(src) {
        var img = document.createElement('img');
        img.src = src + '?v=' + Math.random();  //此处自己替换本地图片的地址
        img.crossOrigin= 'anonymous'
        img.onload =function() {
          debugger
            var data = getBase64Image(img);
            var img1 = document.createElement('img');
            img1.src = data;
            document.body.appendChild(img1);
            console.log(data);
        }
    }
    var url = 'http://domain/x.jpg';
    main(url)
</script>
</head>

<body>
</body>

</html>

打开流程引擎-路径管理-路径设置-xx表单-流转设置-节点信息-表单内容（Html模式）-显示模版-插入-代码块
2023-02-08T09:59:23.png

<script>
  jQuery(document).ready(function(){
    // 添加提示文字
    $("#field6375").attr('placeholder', "填写说明：\t\r 1.具体描述提出此项采购申请的业务背景与理由\t\r 2.具体描述提出此项采购申请的业务背景与理由");
   });
});
</script>

<style type="text/css">
::placeholder {
  color: #888 !important;
  opacity: 1; /* Firefox */
}
 
:-ms-input-placeholder { /* Internet Explorer 10-11 */
 color: #888 !important;
}
 
::-ms-input-placeholder { /* Microsoft Edge */
 color: #888 !important;
}
</style>

最终效果
2023-02-10T13:10:15.png

通过修改 vim /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/php@7.4.rb
注释掉 disable

#  disable! date: "2022-11-28"

安装后会提示下面的错误
2023-02-08T09:46:36.png

通过重装命令解决问题

brew reinstall --build-from-source php@7.4

2023-02-08T09:49:59.png

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