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发表于 2012-11-13 08:48:12
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1判断语句 _' J2 G3 X/ q2 U3 [
if <condition> then i: p3 h& N. n7 E
<statement sequence1>;
0 P, e: o4 P9 @8 r$ |/ o# A8 { elseif <condition> then. Q% J! j+ Y) j7 H
<statement sequence2>;3 k# G5 W! [7 ]9 M2 z9 M; K
else
; H) K p& d, Z <statement sequence3>;
0 Z R: T* ~/ i: E* L end;
; f4 t- X" O' f# W# \如果分支比较多，用：
& S4 N0 b0 v9 t; a inspect <expression>- u4 G1 J8 K* k6 |2 S1 e# n
when <constant_list> then9 i$ Y; P# _; h+ E. e9 r
<statement sequence1>;8 _& X7 O' o) I' n3 d6 o7 [
when <constant_list> then( E3 _& N# i, P) m# A3 X
<statement sequence2>;" F, w; H. f8 B- i' G+ X
...8 m6 P/ L5 U6 T" Y
else$ g: X' w" N! n' Y& F& q
<statement sequence3>;
- F6 s( u5 g8 s9 uend;
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2循环语句
) H0 i3 s8 `0 g8 W, t9 O4 k" C (1) from <statement sequence1>
) X( z1 C2 u% ~2 a! g until <condition> loop
; J& o: }2 i+ g! S& f) W: ~ <statement sequence2>;4 d6 I# a' W* z' Y0 V
end;+ @$ C3 C% t _
(2) while <condition> loop3 q, k5 z3 p$ ]) f
<statement sequence1>;& d$ R% Z" s; V7 w
end;5 I F9 e5 o2 m, X- d
(3) repeat
5 c' e) G5 @5 N <statement sequence1>;
9 x& K1 ~- T; y until <condition>;
( @. o' |. w9 t g) E" }- m* C/ ~) u! q (4) for <condition> to <condition> loop
/ s0 J* W/ f, i/ G% n0 V6 F <statement sequence1>;
; m$ K7 p! U/ k* t next;
! }3 c( s6 G* v1 y# c3中断语句
; }* L3 m! C$ Q' L waituntil <condition> prio <integer expression>;" ^/ c6 C5 m* o
% E) O2 f2 b1 \# a
: S3 d9 w5 _. {4 b9 a以上为常用的函数！
" z6 A- `1 `5 S- i/ R* q6 e$ O8 t还有很多，如有需要我把资料发到你邮箱里 3 \; h5 T' e; t) d8 ^
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