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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;
9 B! Z! \5 H7 [0 [ elseif <condition> then! w1 C. g1 Y: ~! N" \
<statement sequence2>;
. e2 [7 i- A5 W& e6 e# E1 ] else
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end;5 X) u/ x* R9 W5 \! W* R! Q7 h, \
如果分支比较多，用：7 w- S1 F# {( w' D3 `8 q
inspect <expression>
5 D* Q9 C' B' X1 n' T when <constant_list> then* }' Q6 s/ n$ ~3 \# }
<statement sequence1>;+ `: p- `1 A: h9 g; e" Y! ?, n
when <constant_list> then
; i! O, Z, C1 ~7 W4 g- U' @ <statement sequence2>;, ?* k r$ u. A% t9 u8 \, B
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else+ j. N* E2 K& j% k( r# U! C
<statement sequence3>;& B) X" |6 v- U
end;- i" v' T& r6 V# d: q
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2循环语句" k3 l. k7 v& L$ _6 Z& [- @
(1) from <statement sequence1>
& _4 b' L9 r" O2 L- o until <condition> loop( S, k/ N/ U/ I
<statement sequence2>;
9 F. z( l: t, }# ]% D end;
\% n x1 y& s/ p" t2 H3 \: l (2) while <condition> loop
5 s: e* U/ Y: N4 r1 p+ F' p <statement sequence1>;1 D5 Y4 r0 V+ T
end;
- \% X& C; U- |# f) _: C K (3) repeat / p' k: i& `, H$ V. h
<statement sequence1>;8 r2 ^- q4 p- A/ ^* S. V2 y
until <condition>;1 D2 h% L, h6 E& I
(4) for <condition> to <condition> loop. G+ ?7 Z3 x: i# _5 ~5 W6 [- A5 s" Q
<statement sequence1>;! R+ R/ B, P- \/ |8 l
next;
1 D* q* T9 r9 \, W3中断语句1 O3 j; f: [" i4 O
waituntil <condition> prio <integer expression>;
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- v) `/ D* i' G, q: i9 E& V以上为常用的函数！
: L" h! L4 W, v) f% N) g; m还有很多，如有需要我把资料发到你邮箱里 1 q6 ^6 A; a- E% {% Y
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