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发表于 2012-11-13 08:48:12
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1判断语句3 n- _0 E& f/ }# B
if <condition> then
- `8 Q; f8 e/ W: f5 V) l; ^, { <statement sequence1>;: w1 y8 C3 a0 T% k
elseif <condition> then! j9 J; s+ C1 ~- n0 |5 Y; J t: h6 y
<statement sequence2>;/ A5 F& e+ Y* L) D# _
else % S5 H0 f4 z! U0 R
<statement sequence3>;8 R9 N1 G$ U. K
end;
6 @8 ] @9 J0 }5 t" H2 k, {3 r如果分支比较多，用：
2 R- ~ A; A# w Y9 ]' W inspect <expression>
3 }2 d! V8 c0 M when <constant_list> then$ u0 B; |$ {0 l- O
<statement sequence1>;
8 [4 u) u% Q8 ~) N! j when <constant_list> then
+ _7 E3 g5 a5 }! \ <statement sequence2>; E. \0 m' p/ w) k
...
& j. ?/ b1 Z& ~+ C: E$ @$ N else
7 {, A# z0 i+ G7 C <statement sequence3>;
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# ~( {. f2 f4 V1 x2循环语句* I2 e$ y# g# z! [! k, f# K
(1) from <statement sequence1>9 k+ D/ ]# g: d" t) {
until <condition> loop
; J1 I! ^: n D; D; q9 D <statement sequence2>;
2 F3 P: ?9 s% a5 S9 k1 b5 V end;
; t3 \* P! b1 h" L6 M4 ~ (2) while <condition> loop
- W& J; i% C3 _7 o% |2 R, ] <statement sequence1>;
: l/ i0 v, Z* e4 ~ end; `7 g) O X* m- l9 x5 F0 v" p: i; @
(3) repeat
9 \! h; d, T4 C* L <statement sequence1>;" h! s* O4 g6 v% g& K2 ?
until <condition>;
9 C4 H: \) k% Y( y, R+ ?7 q4 S (4) for <condition> to <condition> loop
! u5 b& i3 Z$ o* L, w# o4 x+ A <statement sequence1>;; O- h( g6 l; d: R
next;
! F! z _! i2 k" [3中断语句6 b2 v( B) m. {# Q# s2 M
waituntil <condition> prio <integer expression>;
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X" h3 P- \- o( @
9 W, } F9 s; z5 D' B4 S J以上为常用的函数！
( |$ a/ Z1 e% `% ^$ h* b还有很多，如有需要我把资料发到你邮箱里
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