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发表于 2012-11-13 08:48:12
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1判断语句
& \/ o7 V! j$ I4 A) S1 L if <condition> then
5 M8 H% `) O( j# M% z9 s$ Z; X" O <statement sequence1>;
4 K0 K/ p; U$ }/ d# J elseif <condition> then) r6 L/ ]1 w" {8 z! D! s
<statement sequence2>;3 k* B2 A3 B# R; t% Z8 b) b" b
else
" j. t) K4 U1 O <statement sequence3>;6 a2 e1 u7 ?2 N+ {2 ]5 Z' _/ W
end;
9 B) |, z) z* E8 o) g3 y( K; C! Y2 k- t/ g如果分支比较多，用：& c" ~/ A8 y1 [! m6 `1 |" B
inspect <expression>
; g+ F& X$ H8 p/ x0 j' f when <constant_list> then
9 q3 p h9 C: q. f. m1 i5 U5 ~ <statement sequence1>;
/ V, x, r. N8 g- |2 j when <constant_list> then3 o+ t! @4 f# X
<statement sequence2>;3 t9 |1 R- }4 V3 W4 |$ J" O# h: f
...
" j1 a, U; K' D0 G6 _2 I& U else
0 h; `. u1 O# m1 W- l( J" u <statement sequence3>;& u) p: Z' ~+ H$ Z5 H8 Z4 y
end;
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) p% W1 F; ^1 U; S( l5 V% r- h1 Q6 i2循环语句
; j% I0 T* X4 C0 R9 ]4 c& A (1) from <statement sequence1># T% B1 [, o+ H9 s G- \5 `
until <condition> loop
1 M5 Z" J7 n8 y" N( y <statement sequence2>;# i. p! Y8 j& d
end;
" j# @* b2 B+ s& l (2) while <condition> loop
, Z2 V( u: Z2 i" t <statement sequence1>;1 B) Q4 q5 h! o Q1 b' a
end;
2 ~& b) A( I" c: y$ | (3) repeat
' W9 G: b- L& |- ^! @- k <statement sequence1>;
* X4 ?+ [- U9 M until <condition>;7 ?5 l/ ]1 [% Z# F4 x# B
(4) for <condition> to <condition> loop9 H5 r- ^2 b! U# x t- q
<statement sequence1>;
3 X6 F8 d% w+ a. V, _& ?. y. j next;/ v: p! ?5 [+ v6 t
3中断语句& w( k2 D8 {- F9 }8 j
waituntil <condition> prio <integer expression>;
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以上为常用的函数！5 v! ~. ~( t) d7 G8 L I
还有很多，如有需要我把资料发到你邮箱里 * {( \, R3 z5 p. F' L& `" S
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