Loading... <p><span style="font-size: 18px"><strong><span style="font-family: 宋体, SimSun">一、单分支if语句</span></strong></span></p> <p><span style="font-size: 14px"><span style="font-family:arial, helvetica, sans-serif"> <span style="font-size: 14px;font-family: 宋体, SimSun"> 格式:</span></span><span style="font-size: 14px;font-family: 宋体, SimSun">if</span><span style="font-size: 14px"><span style="font-family:arial, helvetica, sans-serif"> </span></span></span><span style="font-family: 宋体, SimSun"><span style="font-family: 宋体;font-size: 14px">判断条件;</span><span style="font-family: Calibri;font-size: 14px">then</span></span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> statement1</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> statement2</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> …</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> fi</span></p> <p style="text-align:center"><img src="//cto.wang/usr/uploads/2016/07/20160703160905-81.jpg" title="1451630744186477.jpg" alt="1.jpg" /></p> <p><strong><span style="font-family: 宋体, SimSun;font-size: 18px">二、双分支的<span style="font-family: Calibri">if</span><span style="font-family: 宋体">语句</span></span></strong></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> 格式:if <span style="font-family: 宋体;font-size: 14px">判断条件</span><span style="font-family: Calibri;font-size: 14px">; then</span></span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> statement1</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> statement2</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> …</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> else</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> statementN</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> …</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> fi</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> 使用一个以前用过的脚本来说明这个结构。</span></p> <p style="text-align:center"><span style="font-family: 宋体, SimSun;font-size: 14px"><img src="//cto.wang/usr/uploads/2016/07/20160703160905-78.jpg" title="1451630776717070.jpg" alt="2.jpg" /></span></p> <p><strong><span style="font-size: 18px"><span style="font-family: 宋体, SimSun">三、多分支</span><span style="font-family: Calibri">if</span><span style="font-family: 宋体">语句</span></span></strong></p> <p><span style="font-size: 14px"><span style="font-family:宋体"> 格式:</span></span><span style="font-family: 宋体, SimSun;font-size: 14px">if </span><span style="font-size: 14px;font-family: 宋体">判断条件</span><span style="font-size: 14px;font-family: Calibri">1</span><span style="font-size: 14px;font-family: 宋体">;</span><span style="font-size: 14px;font-family: Calibri">then</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> statement1</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> …</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> elif <span style="font-family: 宋体;font-size: 14px">判断条件</span><span style="font-family: Calibri;font-size: 14px">2; then</span></span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> statement2</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> …</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> elif <span style="font-family: 宋体;font-size: 14px">判断条件</span><span style="font-family: Calibri;font-size: 14px">3; then</span></span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> statement3</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> …</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> else</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> statement4</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> …</span></p> <p style="margin-left:57px"><span style="font-family: 宋体, SimSun;font-size: 14px"> fi</span></p> <p style="margin-left:57px" dir="ltr"><span style="font-family: 宋体, SimSun;font-size: 14px"><img src="//cto.wang/usr/uploads/2016/07/20160703160905-85.jpg" title="1451631225926903.jpg" alt="3.jpg" /></span></p> <p dir="ltr"><strong><span style="font-family: 宋体, SimSun;font-size: 18px">四、case<span style="font-family: 宋体">语句</span></span></strong></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> 格式:case 变量 in</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> PATTERN1)</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> statement</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> …</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> ;;</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> PATTERN2)</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> statement</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> … </span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> ;;</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> *)</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> statement</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> …</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> ;;</span></p> <p><span style="font-family: 宋体, SimSun;font-size: 14px"> esac</span></p> <p style="text-align:center"><img src="//cto.wang/usr/uploads/2016/07/20160703160905-38.jpg" title="1451631401892010.jpg" alt="4.jpg" /></p> <p>因为判断结构语句比较简单,没有做过多的说明,只要记住各语句的结构用法即可。</p> 最后修改:2021 年 12 月 10 日 10 : 53 AM © 允许规范转载 赞赏 如果觉得我的文章对你有用,请随意赞赏 赞赏作者 支付宝微信