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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
9 e+ x+ i2 |9 E" a$ [/ L, s2 W8 s if <condition> then: U) T# W, b- b4 `3 i8 x( X6 b7 K. }
<statement sequence1>;
$ A2 ~& l; h( m! Q. \* V0 M; t# P3 f' b elseif <condition> then9 _- _! i7 x1 C3 C) R
<statement sequence2>;9 l, }! ]8 X7 U( ^) [
else
/ j7 _6 u8 c& a- y" _: n& O' y <statement sequence3>;
$ A# ?6 G9 j" `% q) ] end;' X& P* d o" n& ?! z
如果分支比较多，用：: j# `" J1 A& Q* W: ]
inspect <expression>
: h/ M8 [. m' k& f% s when <constant_list> then
7 X) Z' K7 l9 c1 b, Z. c <statement sequence1>;% K3 c) |0 T3 L+ Y$ q4 w$ f
when <constant_list> then
7 S5 t- W) Z: A- e' _ <statement sequence2>;
8 V* T" q' Q( `9 C* Q- C ...
( U* q% r. C! F- O& F/ P else" q( B4 k8 ?, q
<statement sequence3>;
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2循环语句
. ], O) C! o. o9 o' x/ f (1) from <statement sequence1>
4 a) j+ g. j# n u until <condition> loop
/ f G8 m/ V1 z0 e# h0 r- ?# a2 v. v6 `; l <statement sequence2>;
& b6 F4 K( }" k- e# Q end;+ f7 u+ T, e2 v7 `
(2) while <condition> loop) N% }7 h+ i' |
<statement sequence1>;
7 X3 w+ ?) Q$ l, P Z+ R end;
8 |) {8 c+ v3 D4 ^ (3) repeat # i& E* T0 b* A9 O
<statement sequence1>;
9 X% q! f) m% r2 b0 o until <condition>;1 h4 y S' h& d* H" e
(4) for <condition> to <condition> loop. L- L; |4 i i/ [) |
<statement sequence1>;
$ _. o. p! K+ z* c9 M& j3 A next;
9 {' r+ a! H& A: d3中断语句
! p& s Z) u+ n waituntil <condition> prio <integer expression>;
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8 A2 d, e5 X- C9 [" O* ]以上为常用的函数！
" y; y; M: T4 K6 L, P) |. m) V还有很多，如有需要我把资料发到你邮箱里
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