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发表于 2012-11-13 08:48:12
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1判断语句
- ?% N* y" e) N2 z, d" E if <condition> then; F3 X3 b5 @6 @& b. @7 j
<statement sequence1>;
; E, d( n: o& M# I9 Z* v& V- q8 g7 k: i elseif <condition> then# t& M) v4 |" P; T
<statement sequence2>;
% v4 n: ~, `& V: O5 | else
% o2 F8 |7 m- {7 ?, A* l) v" R3 N <statement sequence3>;& g/ h0 \% \' Q9 V1 W; r
end;
- E& ]. P2 W3 A5 }如果分支比较多，用：
: ^- e( v# _3 S! {+ n Y, X inspect <expression>
7 L& e# r0 X& m$ i8 ?- Y when <constant_list> then9 I- |# W' {+ O9 w
<statement sequence1>;/ S( d; A2 @: E9 [/ T
when <constant_list> then* D+ _+ o* S4 ^" Y, V* a- f. `: a
<statement sequence2>;
0 K) d- u; j9 Y, R) f ...
( b( l! B! e+ A r t- o else) u8 y; I( ~, U$ g; X+ d
<statement sequence3>; x, A0 \! m$ ]( `+ J- i
end;+ p; j* L1 B5 Y8 {7 A
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2循环语句
. K h/ ?1 W" ]/ E1 L (1) from <statement sequence1>
2 I5 c/ \) D- [/ w9 n2 q& F, s until <condition> loop
* c2 r4 d7 N$ ?5 m <statement sequence2>;
) j* }# _2 \, t/ P5 \ O end;0 v: K+ s$ G& r, z2 q
(2) while <condition> loop
# W, _5 z$ J$ a: E( d5 t. F6 Z <statement sequence1>;7 b& H" d( o( p% s& h ?
end;
& N5 r2 @" }, V# N( t (3) repeat
# ?- c; t5 M1 ^; @2 w2 u4 Y& c: s <statement sequence1>;8 E0 G4 \- ]/ w
until <condition>;
4 \$ ?9 n1 \1 \ q- }) X (4) for <condition> to <condition> loop
4 e: ?# g3 Y5 V% g( W <statement sequence1>;
; a+ E4 p: B: Q" T) s& c next;
3 `8 m( Q5 c' f; _3 F4 P7 b+ _3中断语句/ T0 L& X; _1 O8 g9 N) w
waituntil <condition> prio <integer expression>;
. }! W* a- N5 ^/ X$ `) y/ T3 I* z) w5 h3 Q& W
% t% o6 o8 z4 ?. T, \" f以上为常用的函数！5 N! E) c* \# K9 o1 o0 b
还有很多，如有需要我把资料发到你邮箱里 7 U5 z6 J; T3 y: U
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