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发表于 2012-11-13 08:48:12
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1判断语句
* q9 k8 |4 W8 C+ l! a& L- d$ M' d if <condition> then
$ S4 L0 _# x& u6 v) ]( z <statement sequence1>;" z/ {" N# D7 ]! Z
elseif <condition> then
2 [2 g& h& N( {! ^ <statement sequence2>;
0 a, [% i0 u$ Q7 w s5 m else
7 `6 \2 ~8 |; ]% m; |7 p% X <statement sequence3>;
0 B3 M9 @% Q3 U# ^7 R- @ end;
; r8 b2 S% N6 K0 { W如果分支比较多，用：
! h: O' P* z/ u$ a, Y- A inspect <expression>
- Y. u" Y: I* d4 z. Z2 ]# S when <constant_list> then
4 H1 ]7 G7 `& a) S1 h; o, @ <statement sequence1>;$ r7 E9 t1 D7 [1 o4 `" P
when <constant_list> then( I8 p* K# Y1 q s" L* r; A0 v$ f7 U7 A
<statement sequence2>;0 @: ]6 V5 B: a8 m: L
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else! H! i/ `- O: v, t1 {9 e
<statement sequence3>;( M/ x" ]3 z C
end;; Z, J. `9 c' ~4 m4 m8 P+ I
6 F4 i2 y) t2 p% ?2循环语句
% O3 ?6 Q A/ K9 m0 S1 A+ A n (1) from <statement sequence1>
, k- A+ Y" q/ Y% [6 b" d until <condition> loop! J* G8 e( y3 y- w/ o( ~& E
<statement sequence2>;% F1 \4 G3 B: U5 J1 m
end;
, Q. v- c+ _ o6 h7 |0 X% e! V (2) while <condition> loop2 N: c L- f$ T; g9 |: G7 N
<statement sequence1>;# S5 X- z3 x. X! U, V, h" K! l
end;- w; O9 ]: v* k' ?% W+ A& z' N! J
(3) repeat
& {) q4 l# u& v' v& `: m9 s( z <statement sequence1>;
3 W5 s" j' ]/ X k! n until <condition>;
9 J' Z* F) J1 E! z5 A (4) for <condition> to <condition> loop, z4 T- `( `* I" S9 q: m
<statement sequence1>;
4 Y9 X( N; o4 ~- |. N$ o next;3 e2 V/ \0 _7 E8 l" g2 Z
3中断语句: g0 o! b/ a/ b, d9 o0 o6 u
waituntil <condition> prio <integer expression>;; b, [" m, Y b$ V( M
( {1 S8 t$ n$ X
/ y$ t( d T4 ^9 ^/ u- c& p5 k以上为常用的函数！2 f: {8 g( y, d
还有很多，如有需要我把资料发到你邮箱里 ) j( A2 k/ m$ y# T% X1 |
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