Javascript 加载本地文件

调用 FileReader 加载本地文件

<script type="text/javascript">
    $(document).ready(function() {
        var traces = [];
        // 加载
        $("#loadFile").on("change", function() {
            var targetFile = this.files[0];
            var name = targetFile.name;
            var size = targetFile.size;

            var reader = new FileReader();
            reader.readAsText(targetFile);
            reader.onload = function() {
                console.log("加载完成");
                $("#kcal_result_show").html('');
                var _result = this.result.split(/\\n|\n/);
                traces = [];
                for (var i = 0, length = _result.length; i < _result.length; i++) {
                    traces.push({'cl': _result[i]})
                }
            };
            reader.onerror = function() {
                console.log("加载失败");
            }
        });
    });
</script>