题目详情
单选题 发送 AJAX POST 请求时,需设置的核心请求头是
A. xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded", "POST")
B. xhr.setRequestHeader("Content-Type", "form-data")
C. xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
D. xhr.setRequestHeader("Content-Type") = "application/x-www-form-urlencoded"

学科:JavaScript+Jquery
时间:2025-12-11 02:58:44
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