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发表于 2012-11-13 08:48:12
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1判断语句
/ W* g, A& t4 M; H8 s* U) a; A% i if <condition> then
6 U; s# H. Y; L$ _- _ <statement sequence1>;% G' ^; K+ |- }/ a( N
elseif <condition> then
! e8 F5 Z' J6 t) W <statement sequence2>;9 W- V' C! I- R% Q! D4 G0 ^+ U
else 0 P* F( k. x; A _' i+ X6 h
<statement sequence3>;
, Q) }; J% z1 f1 \ end;
! _! W* C/ S' \, Q# n如果分支比较多，用：# A2 T2 a! A8 p+ J3 v7 r" O0 x l# W
inspect <expression>
. w8 o3 J. p: C4 l# @& p9 j, G/ Q when <constant_list> then6 Y; p* }8 w6 o) w
<statement sequence1>;
8 q- o, t- q0 L7 x a/ X! R when <constant_list> then
+ l1 }8 X; O. Z% p O% r/ L$ ` <statement sequence2>;
1 L. w5 o1 ]- b4 ], v0 R ...
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<statement sequence3>;
1 k$ u" \; J: k; W) ~5 e N; Nend;& b% U6 y. b* {- H5 S5 v
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2循环语句* u7 m6 ^+ e1 B) B0 K1 X8 l% L
(1) from <statement sequence1>
- w- F0 T6 N7 l4 J3 w' B until <condition> loop% P( [) }$ O8 P3 I; r9 q# R R
<statement sequence2>;! j9 R, c" q8 p
end;# Y# `3 z, v* m/ [% g. K
(2) while <condition> loop2 E# G0 `5 g, t( F4 z# r
<statement sequence1>;8 g# S9 z0 k* N
end;
2 @* E7 `9 A/ h5 h (3) repeat 0 `5 ^! f7 Q9 r+ @$ q0 M! V; [; W s
<statement sequence1>;
' @, F* a0 K4 L0 a$ Z- u* Y' K until <condition>;
" k. m5 Q4 v: j8 m# k7 H/ A" B (4) for <condition> to <condition> loop
4 X, J& u9 I( A <statement sequence1>;& i# |) s: J& s! k$ T8 z; D
next;# F0 L8 n9 G. s( |! H; @
3中断语句
6 F% m+ Q9 p4 u/ c2 Z0 R5 c waituntil <condition> prio <integer expression>;
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以上为常用的函数！- P% B" W5 X& J9 ~$ o. a
还有很多，如有需要我把资料发到你邮箱里 # o% u0 d! B. b; L2 b7 R! W( x
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