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发表于 2012-11-13 08:48:12
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1判断语句" O0 C. F8 I1 d, O/ k1 L2 w
if <condition> then
$ r8 d( L; S, y7 v& T* A <statement sequence1>;" O! n# W* C3 \' V2 ~9 Q! G
elseif <condition> then! O% i4 m# w# a$ d4 ]0 M' H0 b
<statement sequence2>;
; ^' q- H. N9 Z' N0 p else
& S Y# J! }- a/ V0 m# ]1 x <statement sequence3>;
0 W0 p1 p9 y' }3 |9 ? end;
. Y& P4 w/ f. v, B, M( F如果分支比较多，用：
4 G Q0 Y3 V( C1 g0 [. }! K inspect <expression>
X+ C+ p$ M+ n+ I# `. { when <constant_list> then
4 V p8 i; T0 V# e- M9 O# l5 b <statement sequence1>;
' R- g* ]& u- T. B when <constant_list> then4 D9 F. _- p- _ j7 R
<statement sequence2>;9 d0 S8 |& {+ v
...
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<statement sequence3>;
: k$ z n! i. [: J9 g) }end;5 x& ~) M4 t, Y+ C G
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2循环语句. `" x. x8 ~& R! J3 _5 T
(1) from <statement sequence1>
" x4 S, W- ?5 C. Y until <condition> loop- r9 G* t$ q* p& V: ~8 a5 c
<statement sequence2>;9 i0 L! C I: `% I& d. s" h' X
end;, K/ z2 h/ r, o# O( }
(2) while <condition> loop. Y5 X8 {: N: d1 Y6 P! q
<statement sequence1>;
" N8 W6 W' j9 Z0 J5 g0 C; f end;; H6 p) ~2 j$ _* S+ O" U8 J* |: |
(3) repeat - J, g% \4 R5 N! r& r
<statement sequence1>;( n7 B- D; U6 \) x0 [
until <condition>;
& y" w4 g6 Z3 N4 J7 \$ u( s. W (4) for <condition> to <condition> loop; K6 b5 ]- a0 q
<statement sequence1>;
% }: C2 E8 b8 p next;) n% e4 `# l8 P* G4 W; w4 k( o* [
3中断语句
$ s' L) v2 M% o3 v3 E, l waituntil <condition> prio <integer expression>;% {( P+ _$ }/ K* y! F
a: J1 M: }$ x% C. B; M
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以上为常用的函数！
& O# ?# H6 w: L5 h) i# \还有很多，如有需要我把资料发到你邮箱里 ( _& Q6 l6 x! v- L* ~ X6 `
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