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发表于 2012-11-13 08:48:12
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1判断语句
+ k. ^% V% q8 n8 m if <condition> then' o1 U& O1 l" |: F) T7 [) D F
<statement sequence1>;, G& o+ e' {, j: B) X
elseif <condition> then
/ c, i, b6 j" J8 Y& A) J& X <statement sequence2>;
5 ~4 I) J: O- b r J) l( {2 T4 B else % E7 C2 f0 i! O- T; ~2 p
<statement sequence3>;' A0 ?5 w: h! h- D
end;! x2 J. S$ x5 z8 R! Q8 T W
如果分支比较多，用：
% E7 R( t% F3 }0 s+ t inspect <expression>2 S W8 z) W( a: U Q* n
when <constant_list> then7 C4 y; f% n, W( A! \1 p
<statement sequence1>;
% a! a: x' M8 X- q when <constant_list> then
% Z# H/ F1 g$ D" a+ Z7 O <statement sequence2>;# K& Q7 Z# h/ ]/ h% w/ T1 K8 R
...
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<statement sequence3>;! G* d1 {1 `9 z( X) `8 l$ c
end;/ G: G5 z+ m# C) {4 V
0 d7 J- T' H" P1 C2循环语句
2 Z1 b6 J0 x: [* B( R& v (1) from <statement sequence1>7 F" w& M- l* W& u
until <condition> loop' Z+ \7 W1 Y) ` W" ]( Z b5 }7 p: y
<statement sequence2>;) X; M) y$ K8 S' |7 i$ a8 V
end;. \& s x2 R# Z( `! |. A
(2) while <condition> loop
3 |: H9 j$ R& [, C+ ~1 ~- C# U <statement sequence1>;6 c/ R; y) l# p* a
end;
3 P. L- K5 G6 e: ]) x (3) repeat ( _. g* I! H3 V, d
<statement sequence1>;
4 Y Y) q+ r4 w6 c: ^: Z# T until <condition>;
( H" k! B) `7 k( s0 J+ @! Q5 z (4) for <condition> to <condition> loop
/ ]8 o9 `$ e. f- y <statement sequence1>;! v: I/ U7 p7 I8 F7 G Q, Z+ a/ E6 v
next;% R% B4 w& X! n0 x
3中断语句
; y' s, J$ T0 [ waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 l$ g$ s4 x+ z- `! S! x# Y; {
还有很多，如有需要我把资料发到你邮箱里 . W2 K _$ V. X/ V$ G
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