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发表于 2012-11-13 08:48:12
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1判断语句" g( H* w. m+ \% C( B
if <condition> then
/ o, x0 h! K9 @) ]* h8 {3 A9 o5 c <statement sequence1>;% ^: Z) O5 p2 u+ ~# k# t
elseif <condition> then
" {- g: A* \0 c3 f( K* g <statement sequence2>;! i5 G3 k G! B! @2 T
else * F& V! e: H2 y& Z
<statement sequence3>;; D# N7 \ a' N6 b6 A) `
end;4 C9 P- d; f0 K% U, ?- Q; h
如果分支比较多，用：
7 p9 @. B" G' }! ?9 d) c8 i, X+ N inspect <expression>
h( P% i6 W7 _+ M: }, X. l. y1 C when <constant_list> then+ ^: x6 @. G: @( ?
<statement sequence1>;3 e3 U5 K7 t2 q1 n. I
when <constant_list> then& I0 D2 b+ I- U1 P* _% h- |
<statement sequence2>;
' N! }5 q0 k8 O( r- b7 p' Z6 h ...
Z7 r. f, ? O) Q! D else
# E: j5 N, k0 R$ ~1 @4 C& P <statement sequence3>;
a8 k7 K( L/ S; w( P! tend;
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$ K: {' u1 N# s! A; `2循环语句
0 \8 R+ e6 F- m' X4 Y (1) from <statement sequence1>
j: r) I; b7 e$ P' X' w' ]7 X until <condition> loop1 M |0 k Y4 ?8 `! o8 O
<statement sequence2>;
7 J( C8 c" U& k' a8 o9 f) q end;6 B4 q |5 N5 ^5 f; L( A
(2) while <condition> loop$ f' ~1 n2 k# \ |/ Y
<statement sequence1>;3 t" S4 L6 B. G4 @
end;
/ K: U& L0 \7 i) l- g/ [ (3) repeat
- W9 U% Y' b5 ^6 v6 X7 l( D <statement sequence1>;: W9 t$ F: O; m, _, g- F
until <condition>;
0 R! u4 P/ l" s% A* U. z& }6 e (4) for <condition> to <condition> loop
5 M' t" E( {; u5 e- c$ A <statement sequence1>;2 `1 Y/ |0 n- i, H9 q
next;
; B$ q! o* y. N# B: Y3中断语句: ^* K2 a5 v5 c* F
waituntil <condition> prio <integer expression>;0 _9 o |- x1 \; @
2 \, r& S0 e( w7 s
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以上为常用的函数！
( p6 @. a8 s9 W/ @) V' ^' ^% X还有很多，如有需要我把资料发到你邮箱里 , w: [. M( ~# ?& J+ c0 n
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