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发表于 2012-11-13 08:48:12
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1判断语句% i; l" K4 d5 N: `( Y1 q; m; A. `
if <condition> then, I3 F6 T3 {3 p, T9 Y, T
<statement sequence1>;
6 p# \, C4 M6 V( C elseif <condition> then- C% j9 h) W) x- I% A+ z( r/ N1 f
<statement sequence2>; Q# m0 y4 r- U* G
else 6 }' d+ S' Q' Y5 }5 J& e
<statement sequence3>;. G k2 O$ [2 f4 P
end;
# \+ E2 T2 A D$ W+ u* g如果分支比较多，用：9 G3 Y3 }9 R6 j T# Y0 b! ~) k/ O0 e. u
inspect <expression># `! W$ o2 m4 Y
when <constant_list> then* N: r4 @; f" ? W9 W+ u$ |- V8 B
<statement sequence1>;
' X, }9 B- Z9 R. V, w- } when <constant_list> then# p7 X5 {& y+ i+ D! H$ R7 P
<statement sequence2>;
- J0 c3 f) T* }7 j5 H' X ...
+ p" Y, F& {" p* E+ ^9 K else
0 K0 E: i1 \7 Q* | <statement sequence3>;, p3 @. p& u) K$ _( \2 Y6 v; ~
end;
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8 D+ e) ~ h7 U: Q, S9 S7 k3 `2循环语句8 \ _8 c$ P% u1 p
(1) from <statement sequence1>1 W$ ^0 N( G9 @- X
until <condition> loop
; e+ [7 u. p. v1 J: m3 N <statement sequence2>;) G+ b: F4 m$ |1 J6 h; y& p
end;5 r& T+ |* }( r
(2) while <condition> loop
2 T* a7 _' o0 j8 I% a, W: \ <statement sequence1>;3 D( O9 j! x# A8 [. I5 E
end;' _4 Q- o6 \. G p
(3) repeat % J6 | u4 Z2 @0 U9 t8 f0 e' m
<statement sequence1>;; K) {, X7 {9 L8 Q4 o
until <condition>;/ Y; p7 e& ^3 b5 v& j) w3 ]
(4) for <condition> to <condition> loop, a: H/ l1 ^& b3 q( ?
<statement sequence1>;
4 V5 v7 f$ _% f# J# p& T$ F next;
5 G/ d9 |5 j& t T! B3中断语句" K& }/ l4 {7 [) A. y
waituntil <condition> prio <integer expression>;5 U/ f+ M. H# Y: Z
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以上为常用的函数！
7 F; G: L) N5 f6 t: A! t还有很多，如有需要我把资料发到你邮箱里
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