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发表于 2012-11-13 08:48:12
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1判断语句' _$ ~& l$ V% r2 x! D- N
if <condition> then% d7 O' U6 P* @
<statement sequence1>;9 v* b7 U& R. i( k
elseif <condition> then
3 @+ w0 H1 j* l+ {0 P5 @# ]; r <statement sequence2>;* ~7 H. G1 @. i- |1 w0 K
else ! W. b0 w; Y3 m; L* P8 E. H7 V
<statement sequence3>;
$ F* C5 @5 r% ~/ r3 v; y) [ end;
2 C% u# j0 @& f4 ?如果分支比较多，用：/ d* l) ~* P8 G) N( N5 d9 h
inspect <expression>0 r( M- d5 Q* F8 p# k
when <constant_list> then
2 i& m7 Y' }: V <statement sequence1>;
. g8 y. W0 Y7 G' u2 o* s* k when <constant_list> then
6 _/ v# S1 H% [7 L Q% f \ <statement sequence2>;
/ C8 ~/ B3 N5 s/ O/ c+ E ...( _, A6 V6 ] @9 k5 I* g) z
else
7 p: U6 j) L3 d) P1 J2 r+ c <statement sequence3>;& r2 ]5 S; g6 k( ^( [, W
end;' R I/ G- a+ [+ U" t- }
+ a' `$ F6 W9 s1 [, I. ]2循环语句& R: [1 o8 I# R4 ~8 b
(1) from <statement sequence1>
! _" P8 o8 D, r) _: l4 A until <condition> loop2 q6 b) L7 u0 f4 ^1 ^1 L5 d
<statement sequence2>;0 W! d: X6 a+ N( i: v: c/ ?2 x; J
end;
0 }8 |7 q2 m" {, A' S; h* R (2) while <condition> loop
/ P1 q3 T3 E7 C4 D8 f <statement sequence1>;
0 u" x. q$ h- X2 J6 G end;: x S" k) F4 U2 R: @- m- b
(3) repeat
. z. N: x( l. h W' g8 a <statement sequence1>;& u/ Q# ]; a( J3 a) u* k- {, m
until <condition>;7 _7 q- |3 C) e4 h) @) `
(4) for <condition> to <condition> loop
3 {. A1 k1 g6 Z- g1 l <statement sequence1>;
+ }3 G! a% g1 D$ f" Q next;
x) L7 t& R ], {3中断语句
1 v l5 s! N8 v6 O: i5 K# U waituntil <condition> prio <integer expression>;! Q$ d( T4 G) q0 n# G" J* P2 W* e
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以上为常用的函数！, }: {' w% r4 y7 \9 `
还有很多，如有需要我把资料发到你邮箱里 + _( p/ a* E7 R5 Y O0 V/ ^2 h
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