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发表于 2012-11-13 08:48:12
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1判断语句
; z2 ^9 o. e. o+ F% ` if <condition> then Q; ?' ]' F0 K; X0 h' C
<statement sequence1>;( N! e$ w9 ~8 O. R3 k
elseif <condition> then# u3 X- |) P0 A6 i N7 l) g/ }
<statement sequence2>;
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<statement sequence3>;( Q. u# O. ]9 ^% X1 k3 I8 r( W$ c7 {
end;' F5 l- |' E2 M: j ?6 _3 u; \6 i4 k
如果分支比较多，用：5 B3 X! q; M9 C1 p' C; Y6 \$ `
inspect <expression>
3 U) {. D; H, h% R5 b$ x: W. q when <constant_list> then
" [$ K# u9 k2 V# t4 w <statement sequence1>;6 h) D8 S& C ^7 y q/ n" l
when <constant_list> then
2 U' M/ }3 c8 U5 a: D <statement sequence2>;3 _" [$ o' t) R, B4 E
...
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<statement sequence3>;- _6 N& ~/ p, @
end;; }; _& |+ Z# y% a' B2 S3 G1 n' {& ^! ^
! q/ a# @9 i- ^* g1 l7 s& E. O/ T2循环语句
% U2 e; A7 P3 S z0 g (1) from <statement sequence1>' g7 O- A! `3 q, U0 q1 T& p
until <condition> loop6 @0 O$ s8 y( n* v1 O
<statement sequence2>;
. A/ p6 T8 m5 k9 _& ?0 P2 W2 K& P end;
A' f, u z1 s' l8 L+ S (2) while <condition> loop- F4 Y8 P* o+ a, v* O2 o
<statement sequence1>;$ e3 Q d9 k+ ?
end;
2 T: {! h+ I, Z1 Z5 K (3) repeat % P: O0 q1 I$ L/ r# S! }! U8 B" o
<statement sequence1>;
/ i' h8 n1 _' e; S- e/ J, U; c3 ? until <condition>;
' R4 j: J4 n- B; O4 z5 f( {5 S (4) for <condition> to <condition> loop
. f" b8 P8 N, |7 [( V2 F <statement sequence1>;) k- R5 i/ H% @# ^" s' |
next;$ J- Z$ `: z; B. o. T0 ^! [1 q
3中断语句$ _9 b; K6 w( d- Y# F8 V
waituntil <condition> prio <integer expression>;
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6 M9 o6 l! h* U& M- y6 u' N$ b以上为常用的函数！
9 v- h8 a% M( ^0 B还有很多，如有需要我把资料发到你邮箱里
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