JS操作图片(增,删,改) 例子_javascript技巧

        //添加图片

            var array = ['1.jpg',
            '2.jpg',
            '3.jpg',
            '4.jpg',
            '5.jpg',
            '6.jpg',
            '7.jpg',
            '8.jpg',
            '9.jpg',
            '10.jpg',
            '11.jpg',
            '12.jpg',
            '13.jpg',
            '14.jpg',
            '15.jpg'
            ];
            //alert(array.length);
            var tablenode = document.createElement('table');
            var tbody = document.createElement('tbody');
            tablenode.setAttribute('width', '600px');
            tablenode.setAttribute('height', '400px');
            tablenode.setAttribute('border', '2px');
            var count = 0;
            for (var i = 0; i                 var trnode = document.createElement('tr');
                for (var j = 0; j                     var tdnode = document.createElement('td');
                    var imgnode = document.createElement('img');
                    imgnode.setAttribute('src', 'picture/' + array[count]);
                    tdnode.appendChild(imgnode);
                    trnode.appendChild(tdnode);
                    count++;
                }
                tbody.appendChild(trnode);
            }
            tablenode.appendChild(tbody);
            document.body.appendChild(tablenode);
        }

        //    1.将第2行第4列的图片替换成你自己的图片，不要使用setAttribute

        function tihuan() {
            var pnode = document.createElement('img');
            pnode.setAttribute('src', 'images/2.jpg');
            var oldnode = document.getElementsByTagName('img')[8];
            oldnode.parentNode.replaceChild(pnode, oldnode);
            var oldnode = document.createElement('img');
        }

        //    2.删除第3行第2列的图片

        function shanchu() {
            var oldnode = document.getElementsByTagName('img')[11];
            oldnode.parentNode.removeChild(oldnode)
        }