下载下来tomcat，在终端cd到bin目录下ls，发现有startup.sh，兴致冲冲的执行
gefufengdeMacBook-Air:bin gefufeng$ ./startup.sh然后报错：
gefufengdeMacBook-Air:bin gefufeng$ ./startup.sh
-bash: ./startup.sh: Permission denied他娘的，没权限
于是：
gefufengdeMacBook-Air:bin gefufeng$ chmod u+x *.sh然后：
gefufengdeMacBook-Air:bin gefufeng$ ./startup.sh执行后：
gefufengdeMacBook-Air:bin gefufeng$ chmod u+x *.sh
gefufengdeMacBook-Air:bin gefufeng$ ./startup.sh
Using CATALINA_BASE: /Users/gefufeng/work/apache-tomcat.32
Using CATALINA_HOME: /Users/gefufeng/work/apache-tomcat.32
Using CATALINA_TMPDIR: /Users/gefufeng/work/apache-tomcat.32/temp
Using JRE_HOME: /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home
Using CLASSPATH: /Users/gefufeng/work/apache-tomcat.32/bin/bootstrap.jar:/Users/gefufeng/work/apache-tomcat.32/bin/tomcat-juli.jar
Tomcat started.OK，服务器成功开启
