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发表于 2012-11-13 08:48:12
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1判断语句
5 H7 @% o4 h7 g, |: V% `. g# O l if <condition> then8 T* \. I1 L; j7 K
<statement sequence1>;5 m$ U# X' c. d6 j5 S: ?" Z9 g
elseif <condition> then
* c* z' ?6 T' E$ `+ F0 l- |( z <statement sequence2>;
( Z+ }" j6 |* ?8 D. D1 t else 4 N m1 I8 V" l a
<statement sequence3>;+ s, A5 q! c, k7 i8 G& C
end;% g1 C8 k$ j E( A, X7 C
如果分支比较多，用：5 N) f3 Q3 |! V! d& J' F. @
inspect <expression>
: e9 n, j5 d+ { when <constant_list> then, e4 ^$ i! y& Y- {0 x9 }8 d
<statement sequence1>;
* J( ]- i1 Y' d4 W+ s. M when <constant_list> then& g! }# B4 e9 M* U. E
<statement sequence2>;
! B) I! J) Y( X- [2 S ...
8 f; J5 N9 w' c; j/ K else
5 L/ |) ~" C7 q ` Q% t' c <statement sequence3>;
) o; `; @; N9 j4 i/ S4 \. S" k7 Qend;) w. s& x: o8 I$ Y( h0 p; \# Q
. \! x, ^0 p( N; H3 ^3 Z. b* s2循环语句
; I+ T1 y/ [3 A2 R" e' Q (1) from <statement sequence1>9 B9 s; p% }$ i/ t. J
until <condition> loop
4 J _2 H& ?* c; p6 D" P$ C <statement sequence2>;
; t, k6 F3 s& Q* ] end;! D- h, l& \: e3 G' Q
(2) while <condition> loop: R2 a1 i+ S" p& o& v
<statement sequence1>;, d2 T8 [0 ?0 m5 a
end;
) k G% o7 B5 m% m o$ w2 o) O (3) repeat
0 I1 l" n: Q) |, |( Q4 s2 c <statement sequence1>;
! ^! C3 v2 d. h' Z until <condition>;7 V4 S+ u; v% K1 m. u
(4) for <condition> to <condition> loop4 ^4 ^4 `6 u4 ~& h% B2 z' B0 e; s1 z
<statement sequence1>;
/ ?+ p- v7 d7 C. \$ T& h2 U3 b next;" `' g7 w Q Y
3中断语句
0 D3 ^. Z1 I2 d& z- S2 J& J waituntil <condition> prio <integer expression>;# z2 F ^2 h3 d: T: D' m, y
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以上为常用的函数！4 M4 d2 j3 M; I) t, @" `9 Y: m
还有很多，如有需要我把资料发到你邮箱里 # v$ P' h _# C
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