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发表于 2012-11-13 08:48:12
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1判断语句9 N) v( O. q K3 b6 L& ?
if <condition> then
, \1 C# |# D$ F7 D1 m <statement sequence1>;+ q+ h6 D0 L S0 i9 B
elseif <condition> then
! b+ J# ^8 [3 B$ A) a0 ?7 } <statement sequence2>;
( F6 {% l5 Z8 C7 O else
3 V8 U; ?# r/ c8 _+ f) V) o <statement sequence3>;
) G4 g, T& }# a9 b8 X" C; M end;
7 H! m% t% ~' ]+ z2 x如果分支比较多，用：! A8 d$ _1 m. M' {! a
inspect <expression>9 I, N# d# f- h7 i& e
when <constant_list> then' z8 F6 ~& }. o7 e
<statement sequence1>;5 ]- ]4 W& S2 n1 c
when <constant_list> then
R1 ~! F+ J! w5 M <statement sequence2>;" U. X' _7 H2 J1 a
...
8 t; g$ i" T8 n) `, \ else
0 _ n5 m7 q" e, B8 i8 {4 q3 @; W <statement sequence3>;
( q% S7 E& H5 x" {end;
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2循环语句1 |- W! n( U% m. ~( U% F4 @* ]5 y8 ~
(1) from <statement sequence1>/ h: _" d+ ^+ k, q: }2 ?
until <condition> loop
& x& ]5 \9 J- T0 V' ~& c <statement sequence2>;
8 P/ j. S6 L$ E6 h# g) ? end;
( g$ r9 f( T# e/ m8 k) T (2) while <condition> loop
7 ]# M+ @" c4 w- P( F6 |* A <statement sequence1>;' X# h4 e2 r- `0 o: A
end;; ]2 f+ _. V& Y; v
(3) repeat 0 Y& p! v: b/ E
<statement sequence1>;- F+ f% f6 ^! m z3 K3 \% I7 i
until <condition>;
+ s! S% T$ d% V+ V3 o' J( U* q (4) for <condition> to <condition> loop
, t5 g6 g8 u8 F7 j7 w1 m/ e. M$ U <statement sequence1>;! n2 S0 q- k5 r9 T) Q- ?* L
next;
7 u- ]7 s* k7 C* x( K+ t% u3中断语句
2 g+ O+ E7 G6 h( o4 {3 \ waituntil <condition> prio <integer expression>;: v! H0 u1 G! [: E# M; J' m
" N9 f' U3 l5 F
7 E5 P! L" A: ?5 x n/ i/ z以上为常用的函数！7 S: `7 R1 `4 ]5 p% ^0 y
还有很多，如有需要我把资料发到你邮箱里 ; [- b$ Y6 M o6 C2 }7 J
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