JQ方法

1.给type=radio赋值 

input type="radio" name="isTitleImg" value="0" checked>

$("input[name='isTitleImg'][value='" + content_config.isTitleImg + "']").prop("checked", "checked");

2.控制css显隐

$("div[name=inOutDataFrom1]").css("display", "inline-block");

$("div[name=inOutDataFrom0]").css("display", "none");

3.判断是否为数字

//匹配小点数 末尾带.会漏掉

var res1 = /^(-|\+)?([1-9]\d*\.\d*|0\.\d*[1-9]\d*|0?\.0+|0)$/;

var res2 =/^(-|\+)?[1-9]\d*$/;//匹配整数必须带正负号

if(!res1.test(txt)&&!res2.test(txt)) {

}

4.find方法

</span>ul id="isTitleImg">

    </span>label class="checkbox-inline"><</span>input type="radio" name="isTitleImg" value="0" checked>显示列表</span>label>

</span>ul>

5.选择标题与图片格式
var _isTitleImg = $("#isTitleImg").find('input:radio:checked').val();

6.find 获取select下的selected
</span>select class="form-control input-200" id="select_outHttp">
    </span>option value="GET">GET</</span>option>
    </span>option value="POST">POST</</span>option>
</span>select>
var outHttp = $('select#select_outHttp').find('option:selected').val();

7.join()方法var arr = [ "a", "b", "c", "d", "e" ];//数组中只有一个元素时方法不变
console.log(arr.join("-"));//输出a-b-c-d-e
console.log(arr.join(""));//输出abcde

8.