改为使用 val() 的text()

var hv = $('#h_v').val();
alert(hv);

您遇到了以下问题:

• 单引号未关闭
• 您在输入字段中使用text()
• 您回显的是x而不是变量hv

• Single quotes was not closed
• You were using text() for an input field
• You were echoing x rather than variable hv