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发表于 2012-11-13 08:48:12
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1判断语句$ J, O; d8 r" l/ y' b
if <condition> then
: ? a) X' F. v <statement sequence1>;
1 k, u& @" w- t" } elseif <condition> then5 a+ f3 `) |( N- m0 j- |" G; s7 z
<statement sequence2>;6 F( ^" t B" D7 m# I, e
else
! _1 Z$ O1 [0 n C6 _' L <statement sequence3>; ~3 ]7 Q/ _9 H5 y% H
end;
) g$ {- i# p! k; n如果分支比较多，用：
5 K- D4 O. }! t* m6 G inspect <expression>
& Q! t" } w1 J# c when <constant_list> then- l" Q6 s3 F. Z! ^1 e
<statement sequence1>;
/ @5 n0 f' ?' k when <constant_list> then$ e% Y2 s7 S, B6 V! }0 `
<statement sequence2>;. w! S; p+ K3 D, R7 k
... n+ F0 k5 V( q% D, J
else% Z+ E% P) p" ?% G
<statement sequence3>;
) R: F# f5 V# }! K* L- H! oend;
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" r! U) E& o' ]; \2循环语句
) H! K% B! ?( a4 A (1) from <statement sequence1>
3 `+ D( h% r# ]2 {, g7 e. c) A2 V until <condition> loop
+ Q3 ?+ O/ L' s5 g9 {3 B( @ <statement sequence2>;/ `- E9 t# T" }! b. F3 V* T
end;
2 x# U' C5 ?2 w7 P7 t8 I (2) while <condition> loop
% |3 O5 H% g! M7 u- A$ c: P3 \ <statement sequence1>;
6 S9 s+ |) B& |* C end;
) T" p- I8 Z7 s- d4 \$ ` (3) repeat
& a$ P' \! c- `) _* X- h1 R' t- l <statement sequence1>;
" F/ q& u- L( H/ T% } until <condition>;$ L6 p! J$ \0 q0 h
(4) for <condition> to <condition> loop
" q8 n1 N- l, S/ Q6 w& c. }# K4 [6 s <statement sequence1>;
) _- O; U/ `2 z8 N% T6 S5 K% m* q$ L next;
7 N0 w Y4 ^) y4 \0 X( B# s% c3中断语句
# ~7 |; ~" \# k n waituntil <condition> prio <integer expression>;
& } D& C& u& r1 D6 |; T X
$ z: e6 \- I j( l) r1 X+ a* W% [) @9 j* A
以上为常用的函数！& V# v, T, Q0 ] x" e9 x7 _
还有很多，如有需要我把资料发到你邮箱里
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