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发表于 2012-11-13 08:48:12
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1判断语句
; L0 N. L3 V# \# u& L$ L if <condition> then
( o$ ~) J# P3 @3 ^9 S <statement sequence1>;
* @- f' @6 `4 o, l } elseif <condition> then
3 Z' O; Q% e7 p. s4 D# J <statement sequence2>;0 u+ {) C9 x. x0 x3 k: i/ d
else : P! ~2 F' j3 f# P# p, p; o4 F% f
<statement sequence3>;5 R0 b; l- q3 M' _ c
end;
- R7 v. z4 t) T& `3 {1 F6 Z如果分支比较多，用：3 j7 t, B) B' {6 W- P& t) P
inspect <expression>
) o3 s$ J/ g4 P5 h! C! w# T, I- j when <constant_list> then; w2 c" s5 M$ x/ O( |0 n
<statement sequence1>;
, z% G! G% V* J9 N2 [& `3 ~7 {3 P+ { when <constant_list> then
" D- o* }$ ?) I, {3 j$ V2 O; Q <statement sequence2>;% a) H! h9 l- k% A8 L
...: Y5 U4 {2 ~- k( d& P5 P& T6 z8 p
else7 g n# W/ m/ C& y' s$ @
<statement sequence3>;7 z1 f7 a, f1 S% d% Z: b& x
end;( f9 v! ?( [* D8 F) p S! s
. a9 i5 ^* `7 \/ H2循环语句
7 G+ ?5 H2 R) P; F (1) from <statement sequence1> t* h7 ~" p0 {& N
until <condition> loop
, @3 i8 z" s) Q. ] <statement sequence2>;
* u: I# F( u& b end;
' J* M1 h* f" o% ?; P3 m1 _ (2) while <condition> loop
, I$ b9 y; t K7 v) t0 j) f1 t <statement sequence1>;8 q* e! }" @% d: T, L2 ^
end;4 G" V" c' K3 N: e- M$ h: |
(3) repeat " N" F! F. |. y) H' v5 m" K u
<statement sequence1>;
; T# m8 w* C8 f; e, @ until <condition>;
" I! b9 r: }, e0 R! A# ? (4) for <condition> to <condition> loop
1 F. u7 l# r& y1 O" I- j: r6 k1 E. M <statement sequence1>;: z8 m8 Q4 D% S4 _. N
next;
' a: w' {# g4 w1 S3中断语句
( K& }9 ?) l0 q waituntil <condition> prio <integer expression>;3 k: O. K9 P7 p9 ^0 H% ^
, @' `1 j# o4 _+ b* z
6 R8 M5 G: c( A# I. C) y) z以上为常用的函数！$ N- u. h4 I. Y+ A; @# ? z2 C/ [
还有很多，如有需要我把资料发到你邮箱里 * Q/ ?9 _/ a7 G# M/ A2 Z' @$ T
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