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发表于 2012-11-13 08:48:12
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1判断语句. {$ x" Y. b! C0 E6 |
if <condition> then
! X2 J# j+ @& V7 o9 s <statement sequence1>;
6 [0 r2 m6 Y) y elseif <condition> then
x7 N7 y* A) b! m <statement sequence2>;
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<statement sequence3>;' A8 s% |0 Y) I( ^1 p5 ?
end;
& n$ G# H: U- ^* {/ S4 F3 y2 N0 G; C如果分支比较多，用：
' f, f9 B" X. X/ d4 p) g inspect <expression>
6 h' }# d% c p& F6 H when <constant_list> then
( j5 h& [7 a/ z. v; `5 A( n <statement sequence1>;
3 |& z$ n; D! @6 `7 s) Y: {: q2 l when <constant_list> then, y+ z- S3 |! n: o7 u
<statement sequence2>;
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else
' s% s$ p- F8 M8 j <statement sequence3>;# E: |' a1 _, _; M, Q
end;
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2循环语句# ?# [3 x( H& j& D! ?; @
(1) from <statement sequence1>5 }! F: f7 h$ x: o9 _" z( m
until <condition> loop: |1 ~. f' `# @: E% ]
<statement sequence2>;* }$ H8 E, B7 G% \; a5 @
end;9 ^4 o! W8 p' Q, ?: u5 R0 }
(2) while <condition> loop2 i' z: e5 r6 x5 R7 t
<statement sequence1>;8 n* J" m* j0 E6 X! z$ S8 t R- {4 V. Q
end;8 Z Z5 {, r, y* [ L, f% c5 j5 R- D
(3) repeat ( j' U3 I% E/ q; U/ m3 ~' b
<statement sequence1>;
; O2 p. U5 O: f8 n { until <condition>;3 q% k& d5 M/ f. k" \
(4) for <condition> to <condition> loop
( Z6 \( v) {9 u- J8 T& i7 u3 r <statement sequence1>;5 _: X' E) \; `8 y) o8 h+ O
next;
% J+ T0 |! k! \3中断语句% x7 b1 r" @1 [9 Y; D6 y
waituntil <condition> prio <integer expression>;
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( K% G0 l4 P+ `, h: }! G3 s以上为常用的函数！* @" o: {5 z. B$ n" v2 ~
还有很多，如有需要我把资料发到你邮箱里
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