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发表于 2012-11-13 08:48:12
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1判断语句
% h0 @6 J5 L& K3 L if <condition> then8 x2 w- O z' v/ U. e, O
<statement sequence1>;9 k1 [7 e5 e0 v9 I: s4 h
elseif <condition> then [. p9 a5 {+ {' Z+ X* X* e% o2 T
<statement sequence2>;% _/ g3 s: @' @
else 7 n0 L! l/ c8 A8 T
<statement sequence3>;
) _4 T/ j. v) ?) @3 l end;0 A" @: ^) I O D- ~6 y
如果分支比较多，用：0 X' }3 U" X, t- @( ~$ u# A, ~
inspect <expression>6 y" R# i2 f: i* r; i) C. ]8 m
when <constant_list> then7 D, h! D! C9 S# }- l; X }% N0 n
<statement sequence1>;
- t- J: S# ~ l& j when <constant_list> then; H" X8 O- u. U: u9 c* E( Q
<statement sequence2>;$ o! n4 u! Z9 h1 O) k9 l
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else, u, z) D7 |. v8 N
<statement sequence3>;
; y; J" N, _7 r2 q" y$ w! B2 Pend;
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# i& I$ E- @; t1 W$ M$ I2循环语句; o: K ]0 M2 e/ n
(1) from <statement sequence1>1 t+ S* M9 u% a% r
until <condition> loop
/ V# j- L# R( |2 e1 L <statement sequence2>;
3 o3 D! u( ]4 Q* A, n* ]% C$ j end;# l- N/ a" v- C$ N- P8 { j" ~
(2) while <condition> loop- x! l9 ? V! [1 i8 L5 {: Z; H
<statement sequence1>;: x1 i0 v+ _6 J' G v4 w+ k+ n
end;
) y* M. ]: G. o& C) ] (3) repeat
% y, i' e! v! N, ^$ s+ s6 T2 [9 P/ N <statement sequence1>;
9 Z; n$ }$ n1 Y ~$ {% T- { until <condition>;. i8 a3 \4 n% Z. v
(4) for <condition> to <condition> loop
# ^) S# T/ V0 o8 q$ ]1 y" E/ Q# Q <statement sequence1>;7 t% Q- M; W4 N1 O- z
next;, U E; X. Y& @; \5 S
3中断语句5 o" l0 d; Q$ m+ B q, G
waituntil <condition> prio <integer expression>;
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3 D+ J+ t p; J2 d6 d/ \以上为常用的函数！
: @1 Y8 j1 W6 j; U F还有很多，如有需要我把资料发到你邮箱里 % G. g9 U9 S" e
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