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发表于 2012-11-13 08:48:12
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1判断语句
3 L& x, k% U+ c$ Q6 i- _4 d% { if <condition> then
& c1 n1 l" M! F4 z4 b Q1 { <statement sequence1>;
4 V+ X& X' [7 _" S& L: r elseif <condition> then
! v5 N% h$ M4 d0 E4 f; C <statement sequence2>;
$ a% U: t: K3 Q8 s# `$ N else 8 Q7 m% ]. p3 T9 A; E& `
<statement sequence3>;0 Y# R/ D9 C9 R
end;
& l( f; Y, h8 s; g& k% [如果分支比较多，用：( j6 G7 Q- X9 T$ U& [1 O0 A
inspect <expression>9 C/ E. k& A# L) h) B
when <constant_list> then
# Z3 ?. M) F v0 R <statement sequence1>;
; `" o4 p4 O$ [ when <constant_list> then
6 p y6 }9 I& \0 L( {4 |( n <statement sequence2>;
' g5 G5 b* h* \4 z ...
3 P( h* |: J$ l else
# `; ?/ A5 b+ q9 {) S) W2 _9 ~ <statement sequence3>;
4 Q# _" T4 f" R1 t2 u$ N- t! cend;( z% s* {& A \( h: |
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2循环语句
" O- o# ?3 o" x/ J9 f3 G7 f (1) from <statement sequence1>9 F* R0 I' C$ Y6 i" x$ Z
until <condition> loop3 D% c1 J' V7 ?' `$ z, E- `
<statement sequence2>;
5 D% M* D( M+ F( Y' q! i& d+ t/ T end;
: m( ^; d6 l* i E8 B( x (2) while <condition> loop' N1 G: w% M+ }) U4 @
<statement sequence1>;* x, g A, [8 _% D) m5 u' X" P5 H
end;
6 Q) R" A; X1 h) |& X (3) repeat
5 P$ }; r5 m. [' R. _" A+ a z' M0 h <statement sequence1>;
4 }; E, d# O# B until <condition>;
8 a2 y; Q% b5 [* y( W; M% O1 I: ` (4) for <condition> to <condition> loop
; C8 T) E- _6 @' X4 x/ h <statement sequence1>;- z& b* a( q: Y1 M8 r2 u
next;
2 f, M* q) u$ e4 L, ?/ r! N3中断语句! r3 j0 f6 p* L) f+ q: y* P3 E9 z6 Q
waituntil <condition> prio <integer expression>;
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3 m3 n/ h. ^; |. b以上为常用的函数！
! ?- t+ w& i/ [+ l6 I: x还有很多，如有需要我把资料发到你邮箱里 6 D' L6 o& p; p* D' B
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u$ R; s9 V* E/ w( O* { t$ O: _+ {8 o4 Q4 x* |0 K0 Z! R
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