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发表于 2012-11-13 08:48:12
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1判断语句
; Q3 y; n# ?8 S if <condition> then
, G" C! W- d( P& G* w' { <statement sequence1>;
& h$ `) s' _( v elseif <condition> then- G+ e2 q0 @1 n8 x8 Q) {
<statement sequence2>;
/ T! A4 K7 M) _ else 0 m( E1 h9 T K
<statement sequence3>;
! V( p+ V5 N! |* `) P end;
1 Q$ K; K: {% X4 M5 o8 M如果分支比较多，用：7 v) C6 Q9 B/ R" ]# |. E: U' e/ I
inspect <expression>
9 v# @& z) }2 k" S! }$ K when <constant_list> then' d( }; I9 `) V' D
<statement sequence1>;
. Q( b! n/ g2 d6 L+ }4 N4 o, y0 m when <constant_list> then
% y& Q* W7 T, `3 m+ _& E% o <statement sequence2>;0 @3 X+ u( g2 {1 b& d$ K9 P
..., m7 B! R! g4 d/ g. L6 K7 a' r) Q
else& P0 M. W8 Y7 v. g; |
<statement sequence3>;; h+ ^6 W2 J. o" e m
end;3 N3 l5 H: e5 W9 i! b- n
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2循环语句
8 y9 ?" b' d( i5 H (1) from <statement sequence1>( Z. s5 X* m) o% g
until <condition> loop- b" z6 W9 n7 H1 A
<statement sequence2>;
: \' w) O/ }. E* d1 E end;
8 D* M; R; {& s2 c( K0 }* \* X% M8 @ (2) while <condition> loop6 l+ I4 ?& ~. n
<statement sequence1>;" y) V+ x6 V0 q h" a
end;5 U& e6 v3 K) A6 y
(3) repeat * S- O& [: v' H1 h$ ?9 I% ?
<statement sequence1>;& `2 y& Y: n) P% V8 F: u
until <condition>;
) C0 K* K) H( n& f+ M (4) for <condition> to <condition> loop: h7 f: N% [3 H) Y8 _
<statement sequence1>;
# |" l% a0 e- _! z( ] next;9 o& R& B2 _) u {
3中断语句
x7 A: k/ k+ O. x9 a. }( S waituntil <condition> prio <integer expression>;" w/ |: N& w2 P" b) G$ C$ e8 y
2 e; d Y* d ]- V# C& m8 x/ a
/ ?* N( u" K) Q以上为常用的函数！! k3 {* W( J8 s: `, X! a) f4 Y
还有很多，如有需要我把资料发到你邮箱里 ) n6 c4 P( S; e& |$ j! d, Y
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