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发表于 2012-11-13 08:48:12
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1判断语句
5 Z* f' m" j3 [8 V) P( z+ z% X if <condition> then
( T! T# `3 G' g% V8 m+ R) w <statement sequence1>;
# w7 U/ s; Y, B7 q elseif <condition> then
3 O S0 w/ S2 j9 g <statement sequence2>;+ s0 u& z* n: q# A/ Y
else $ \2 L# P3 }! q- ~0 W
<statement sequence3>;
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如果分支比较多，用：# l8 i/ B" h3 o& T& s
inspect <expression>
4 `7 H: p/ A$ `9 ~3 m! B when <constant_list> then
) T) c: L. @! n' O/ w. O- g- B" c <statement sequence1>;. [! O5 D0 N7 u9 h/ b* d
when <constant_list> then- w& r9 I, u4 l0 j/ a- Y, `
<statement sequence2>;
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else; t8 N/ S* s4 m+ \1 o
<statement sequence3>;
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2循环语句
3 C, q, g. w, p4 Q4 y. x (1) from <statement sequence1>
# r; L9 J1 @0 o) I% j0 ` until <condition> loop
) z0 E' M! J! b& ]4 g) M8 w! I* j <statement sequence2>;# e" r/ V8 O. B8 v2 {- k
end;3 b+ }# a- s# w( z: x# _6 `
(2) while <condition> loop; O9 B' D" [3 C( v; h1 d/ B
<statement sequence1>;
: J: ^9 S) e0 \: e. @1 O end;# O/ s1 m% A2 U" j4 A T
(3) repeat / z) k* @% ]: j) J) l+ v4 h. k4 H7 ?
<statement sequence1>;; L3 W6 z: d% h s6 ?/ S
until <condition>;
# n5 Z- G4 O8 U. j- N (4) for <condition> to <condition> loop& K7 V3 x) J+ `9 p V
<statement sequence1>;" L- w! @# T {' q
next;' m. h2 b. d6 W, W- q
3中断语句! c* X+ } j5 Q: O- }: }
waituntil <condition> prio <integer expression>;, T* p) A: W" A& e
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# o9 J5 l: r% U( G+ ?以上为常用的函数！6 a. E; i, L$ Z/ B. y( T% k2 Z
还有很多，如有需要我把资料发到你邮箱里 : I/ b: x6 @# E5 O( X: m* |* i
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