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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
/ V) S8 |, n, [7 l W if <condition> then
- E1 }0 S# \3 _' S0 `! {, d <statement sequence1>;5 O) T' |* }! S4 O9 S: M
elseif <condition> then' v# N7 z4 q' Y# I
<statement sequence2>;0 w4 a; D$ y- ^
else
! k: \$ G2 ] O# X* _, `" Z <statement sequence3>;$ B ~+ m, q+ s
end;
' M6 F3 P* g1 e如果分支比较多，用：/ |0 J4 i7 R6 Z- {2 T9 m9 O# m/ ^
inspect <expression>
/ q$ Y# @3 D7 @; J4 x% o when <constant_list> then5 e Y* c' e0 }/ }* H' z( h3 [6 p
<statement sequence1>;
) e$ ?2 I+ W2 k) o0 {* E h B3 d- g when <constant_list> then. u# m: n2 W; }$ O
<statement sequence2>;
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else5 J" _2 K9 ^8 S
<statement sequence3>;6 @! z! T! W+ V7 w
end;+ Z& h; D( d5 k
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2循环语句
5 G6 Z0 S! o$ E (1) from <statement sequence1>
+ F; D. ~* M% l3 Y' S$ E5 \4 [ until <condition> loop
% _. ]" A7 W" g6 D6 r# s+ b: T2 f' A <statement sequence2>;6 i4 O F% T2 X! j
end;
. \; R# W- M- P. g# t (2) while <condition> loop
9 `* }1 [( R0 H6 E/ B <statement sequence1>;
; n* s+ c0 T* e. e0 v8 ? end;
6 W6 [& [- S; ?" a) F1 u# r2 Q (3) repeat
# k$ c( @. \7 d. K% p <statement sequence1>;
: d6 }: O6 y5 ?' q until <condition>;
1 _( A5 s f5 [5 j (4) for <condition> to <condition> loop% t ^& G7 P5 F
<statement sequence1>;9 ?; D; T5 U0 ?7 W; u# [' N
next;% M" K, V$ e8 W# k, l8 {. F- Y
3中断语句( g- y( m" N' C4 l7 a
waituntil <condition> prio <integer expression>;
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$ E& Z2 ^) F, L5 Y+ g7 X" b4 M( |5 n4 ]. t$ b! o
以上为常用的函数！
0 u. F" ^6 r1 j8 C" i还有很多，如有需要我把资料发到你邮箱里 - y) ~. d2 M% [: ?$ t1 E
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