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发表于 2012-11-13 08:48:12
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1判断语句
) T H$ t7 ^; ~. F9 m8 | if <condition> then8 d. }" ] k+ J$ @0 y6 {4 k. H5 v
<statement sequence1>;
8 X& q. H. a* R elseif <condition> then/ X, v1 p6 N) d5 a& ]
<statement sequence2>;
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<statement sequence3>;1 _; Z% x, @$ ?1 @$ ?; E
end;" e' u9 H/ }) K& R) v3 B
如果分支比较多，用：2 O1 o8 A2 @+ \# x9 C2 {* ~
inspect <expression>7 V w' x) Y8 J( g# `
when <constant_list> then6 [* \8 v+ l3 a5 y
<statement sequence1>;
6 m, G; ]! Y+ [8 }, E) | B& I when <constant_list> then9 p) S& @) H+ u; I! z! Y
<statement sequence2>;
& x( Q+ i- q* Q& I ...
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<statement sequence3>;
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/ n1 J& y5 G' \6 F; L0 E* `; \2循环语句
& c# q4 R/ p3 O6 g% t (1) from <statement sequence1>, N& }. c. M! I8 `4 D9 @. x
until <condition> loop+ Y! M+ x+ x6 x" z
<statement sequence2>;% s ~/ f7 a, w7 u, \, G
end;4 K* `( N, q: L3 G
(2) while <condition> loop
+ U M) B M0 r* s <statement sequence1>;" S; t- I6 f' b4 N. [/ `2 X
end;# K( H1 t. v. z) q Y. Y+ k* O" |
(3) repeat ) l- O$ J6 Y( Y+ e( O( } H
<statement sequence1>;
6 m/ e# G/ A- X. Q! U until <condition>;
" _2 s0 r- `4 `; ?: H0 z (4) for <condition> to <condition> loop4 Q8 R+ }9 S* m' a+ t
<statement sequence1>;: q& @( x+ z' D! i* W/ |0 d
next;
( a6 S6 D$ x" @% y( j3中断语句
( ^% G6 N( c7 h( Z5 h# { waituntil <condition> prio <integer expression>;
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& |9 O! F% G8 k2 m5 D以上为常用的函数！7 U: s' i* M3 L0 y# w
还有很多，如有需要我把资料发到你邮箱里 ( I& o2 _9 \1 l9 |; C& d
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