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发表于 2012-11-13 08:48:12
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1判断语句9 s8 j c8 o$ i. {1 e
if <condition> then
, \ D) B) \0 P; ^( R" h6 Z <statement sequence1>;, ~% ^0 \1 }. q9 R1 E |1 o! {
elseif <condition> then( L+ N' z: j2 R* A; j
<statement sequence2>;
$ ~; x( k" _2 [; U else
& w( ^2 ~7 t6 B0 y; l <statement sequence3>;2 F3 D% ~0 j1 x: @( I8 M5 [# S
end;# U" r% d% ~$ e' Z) }; }6 V
如果分支比较多，用：
; i% o: s$ u1 h" U inspect <expression>
( M( Q9 |( c( Y* \ when <constant_list> then/ Q1 k8 t1 {4 f/ x$ o) U4 @
<statement sequence1>;3 t' i5 b+ d0 C; Q, n; S
when <constant_list> then$ C" Y3 W* _- {: U: |
<statement sequence2>;4 N+ c+ v2 Z1 x7 w' s
...
4 `* k7 N) S5 M* ~) z. g3 G4 _ else
8 F( z3 X, C) w <statement sequence3>;; z9 j% A& }2 d. L
end;
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. s6 Q) o' C2 D- C. F) g7 M2循环语句
( z, {: |/ j1 `; _( z6 h (1) from <statement sequence1>
- ~7 ~6 V4 s, l$ ? until <condition> loop# O7 s+ w Q( r5 S9 \% a
<statement sequence2>;
! m: d8 E8 y! Y! e end;
) |, ^6 x8 b7 f h. F (2) while <condition> loop; a! {) {; L! W& S& k
<statement sequence1>;8 Z2 N8 }& T( q; `/ y3 Z
end;
/ X7 a% M G! v. w& i (3) repeat # U1 o% D$ j4 a( O( v. b8 H
<statement sequence1>;
! K9 @6 g7 J H1 Y3 J) |5 ?5 X until <condition>;
, s( V2 @; D( W7 b4 t( a (4) for <condition> to <condition> loop( Q) S, p5 S7 e* r' u+ j7 ~" u
<statement sequence1>;# ^9 U" Y% i5 H, q6 r
next;. D5 R- e0 S1 P5 e& T
3中断语句( Z. \/ n3 C5 L# ]- Q' U
waituntil <condition> prio <integer expression>;
) n: ^2 V. f: @! \2 S0 H; A' u6 H4 |: D I# {8 {# j
4 k6 P4 }4 e$ d8 ~( P/ y2 E. p以上为常用的函数！
% K4 H% W9 o% {: U4 e还有很多，如有需要我把资料发到你邮箱里
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