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发表于 2012-11-13 08:48:12
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1判断语句
0 \7 z8 @1 q9 K+ b3 n9 w if <condition> then9 y( f" q7 T" u; e
<statement sequence1>;! S4 S4 y& v( v! \# `9 ^# R8 T# h
elseif <condition> then6 |9 [. p6 m' V7 @
<statement sequence2>;' [# Z3 T7 c o' C) G4 h
else : F9 [8 o) T* K" k/ C$ c; ^
<statement sequence3>;+ O" Z+ \# m; s; ~/ r) U
end;6 V; y, Z0 ~, ^' C2 g' |4 j; j
如果分支比较多，用：! ] V6 X3 |4 U6 g8 W+ u8 i9 |
inspect <expression>* J# b5 G7 q: D
when <constant_list> then
- L9 Z, A' c: m5 C2 k& d. r* ~* Y <statement sequence1>;
. Q1 L; B1 s; c8 d when <constant_list> then
0 S5 R& c- Q7 A, R; t <statement sequence2>;% r. i) M) v* \' p. P- c% t8 S
...
0 k" S6 y& N2 f9 } else
4 g+ J( |6 O# x <statement sequence3>;! B, K- x8 t! v1 F
end;
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% X6 ^2 @0 w" {2循环语句) t( Y8 w1 _$ q: x6 V
(1) from <statement sequence1>
: a! g* b& x7 f! ^5 q until <condition> loop
9 e5 p. r7 B3 x& E$ U <statement sequence2>;6 o3 Q- r) I" E& X# L7 w- Q
end;6 x4 R8 t9 R. E" t2 _; Q
(2) while <condition> loop/ f: P+ ^5 A% Y
<statement sequence1>;& ?! p6 D, |& F# E* i- ?
end;1 z) H' U6 |6 Z( \# K( \; a0 Z
(3) repeat : {! z- L$ @3 w
<statement sequence1>;. ]* O9 a/ Y9 x1 s- O8 S
until <condition>;
, ~% }9 C/ ]4 ]5 R, t6 j/ f! | (4) for <condition> to <condition> loop# Y/ X) F4 b- H. R$ s
<statement sequence1>;1 E8 H3 k. v! ?; L `0 C. R
next;
. [4 \" B7 }) [8 E+ O- \3中断语句$ d2 ^% C9 {$ G4 {( Q* a$ k0 e
waituntil <condition> prio <integer expression>;* Z4 O4 M: E' w1 `; B& H% i' I
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以上为常用的函数！: T$ u, R9 I: U" f x+ E" o. @2 Q
还有很多，如有需要我把资料发到你邮箱里 z- \7 s" ?8 M- i
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