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发表于 2012-11-13 08:48:12
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1判断语句
/ J4 M" _& K. }7 L if <condition> then
3 P/ ]: Y. j E; o1 T* D <statement sequence1>;! Q' t9 e! n& g' l2 q4 k
elseif <condition> then
" Q- R5 a: M5 I" \' D k( x; z9 X <statement sequence2>;
4 T F) a: L8 E4 a H! d8 s" O else
, g2 e: f8 X+ w4 q/ z$ [: L! b <statement sequence3>;
' B! J1 y3 N/ O4 T) n end;
, ~$ G2 i- F. z2 L' I+ ^如果分支比较多，用：% |0 M/ S9 r6 W, g% I4 b
inspect <expression>
" Y3 H7 B" _) R1 Y/ U. P8 ~ when <constant_list> then. K6 _. ^0 U( P' P7 [' z" b+ \7 v7 Y
<statement sequence1>;# X6 [0 q" |3 k2 G+ z
when <constant_list> then
" H- ~9 b$ z9 \" m" P- Z <statement sequence2>;
8 f. Q# z% J" E6 C7 R ...
! \3 f3 w; e4 n: H2 m, e$ m else) o0 C; H7 l2 v& c" d- W2 g% {; |
<statement sequence3>;
2 F2 ` f+ m% O% n/ xend;
: {% G2 L' ^$ [8 q6 w k- ] U
) Q- D- S& ^$ ~ k2循环语句5 R2 @9 z7 L: k! `/ l& _
(1) from <statement sequence1>
4 M- }( s! \0 z5 g1 | until <condition> loop, e* N j: { I" s. @
<statement sequence2>;
& ?, D. ~& z, a8 _5 h end;6 F% i1 D, {1 X3 x; C% W5 ^" j
(2) while <condition> loop) j9 [( }4 r% T1 y! I; Y D4 l
<statement sequence1>;
; \1 w0 y+ o8 F2 }. V2 _ end;# ]: }( Y3 m) I& z, Q
(3) repeat
; i' E2 Q6 U2 M& X2 @5 P, {: m# o$ a <statement sequence1>;/ }! r" E9 Y8 N: W0 B
until <condition>;) g8 b# X7 N$ Y
(4) for <condition> to <condition> loop
2 X9 n& N! z8 @ <statement sequence1>;% q4 L6 [& E! c2 I% c- p
next;; g1 c# g+ j( t" I1 }7 R- b
3中断语句
s( F" T; r! a waituntil <condition> prio <integer expression>;
( r9 r" z5 G' z6 r( u Y1 {8 h
0 ~ x( y; D% z1 m$ X; i
) E4 q3 d u, M: Q0 L2 n4 ~以上为常用的函数！- t% _9 ^% H/ l% F r$ C; b
还有很多，如有需要我把资料发到你邮箱里 + `. Z v* m2 \" z* _
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