启动问题: 执行start-all.sh出现以下异常信息: failed to launch: nice -n 0 /bin/spark-class org.apache.spark.deploy.worker.Worker --webui-port 8081 spark://master:7077 解决方案: Just added export JAVA_HOME=/usr/java/default in /root/.bashrc su root vi /root/.bashrc expor
错误信息: eact.js:20483 Warning: Failed form propType: You provided a value prop to a form field without an onChangehandler. This will render a read-only field. If the field should be mutable use defaultValue. Otherwise, set either onChange or readOnly.
感谢朋友支持本博客,欢迎共同探讨交流.因为能力和时间有限,错误之处在所难免,欢迎指正! 假设转载,请保留作者信息. 博客地址:http://blog.csdn.net/qq_21398167 原博文地址:http://blog.csdn.net/qq_21398167/article/details/46412713 1.首先查看全部服务是否已经启动 运行 # nova-manage service list Binary Host Zone
1.javascript版 document.onkeyup = function (e) { if (window.event)//如果window.event对象存在,就以此事件对象为准 e = window.event; var code = e.charCode || e.keyCode; if (code == 13) { //此处编写用户敲回车后的代码 } } 2.jquery版 document.onkeyup = function (e) { if (window.event)/