摘要：
html <form> <input type="file" class="form-control form-control-file"accept=".csv, application/vnd.ms-excel, application/vnd.openxmlformats-officedocu 阅读全文
摘要：
html <span id="operationType">录入</span> javascript var V_operationType = document.getElementById("operationType"); console.log(V_operationType.innerTe 阅读全文