{"css":"div{\n\t\t\t\twidth: 100px;\n\t\t\t\theight: 100px;\n\t\t\t\tborder: 1px solid black;\n\t\t\t\tborder-radius: 50px;\n\t\t\t}","js":"","html":"<div></div>","libs":[]}

{"css":"/*补全代码*/div{\n\t\t\t\tfont-size: 20px;\n\t\t\t\tcolor: rgb(255, 0, 0);\n\t\t\t}\n\t\t\t.green{\n\t\t\t\tcolor: rgb(0, 128, 0);\n\t\t\t}\n\t\t\t#black{\n\t\t\t\tcolor: rgb(0, 0, 0);\n\t\t\t}","js":"","html":"<div>红色</div>\n<div class='green'>绿色</div>\n<div id='black...

不改变原数组在结尾添加元素 {"css":"","js":"function append(arr, item) {\n\n return arr.concat([item]);\n}","html":"","libs":[]}