给新手看的,可以帮助新手快速入门。
1、loop
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loop
.....
//代码语句
.....
if 判断 then //退出循环条件
exit;
end loop;
有点类似java中的do..while()循环方式
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2、while
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while 条件 loop
.....
//代码语句
.....
end loop;
类似java中while循环方式
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3、for
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for i in 1..n loop
.....
//代码语句
.....
end loop;
类似java中for
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4、goto循环
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<<repeat_loop>>
.....
//代码语句
.....
if 条件 then
goto repeat_loop;
end if;
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