id选择器使用_______________进行标识,后面紧跟id名。
A: "
B: "
C: "&"
D: "@"
E: "$"
A: "
B: "
C: "&"
D: "@"
E: "$"
举一反三
- 下面哪个 jQuery 选择器选择 id 为 box 的元素里的所有a标签?( ) A: $("#box.a") B: $("a") C: $("box").find("a") D: $("#box").find("a")
- 下面哪个 jQuery 选择器选择具有给定元素 id 为 box 的元素?( ) A: #("$box") B: $("#box") C: $("box") D: $(".box")
- 2.使用font-family设置字体时,以下书写正确的是() A: body{font-family:Arial,"微软雅黑","宋体","黑体";} B: body{font-family:"微软雅黑","宋体","黑体",Arial;} C: body{font-family:"TimesNewRoman";} D: body{font-family:TimesNewRoman;}
- 以下哪个选项是正确的json数据格式: A: { "id": 2, "userName": admin, "passWord": 12345, "email": admin@qq.com} B: { id: 2, userName: "admin", passWord: "12345", email: "admin@qq.com"} C: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com",} D: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com"}
- 下面语句中,正确的是( )。 A: printf("%c ","student"); B: printf("%c ","c"); C: printf("%s ",&a); D: printf("%s ","hello");