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发表于 2012-11-13 08:48:12
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1判断语句) K2 Z" [7 ]. d' B5 n4 F4 @* ]" i0 {
if <condition> then
7 s) s% j: Q" U5 U <statement sequence1>;
: Y. F- _$ u% H* l6 q) U6 b0 l1 I elseif <condition> then. c; Q# ~& F0 a2 m+ p1 E
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用： w0 o6 I2 \% ?4 W
inspect <expression>
1 v8 }. Y3 ^* n3 T' K5 l when <constant_list> then* I) I* B G4 J1 [
<statement sequence1>;
& P% W+ R+ |- R. A$ h' r when <constant_list> then$ {1 a1 T( i2 ^5 Q7 P. `, K
<statement sequence2>;, ~/ Z% G U F: H
...8 I* r, g# ~( o& }- F0 h% o$ c
else0 \# t. ~# c+ a$ U$ l
<statement sequence3>;
' F' P" @1 q K3 Bend;
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' T4 A6 m6 O8 o0 T2循环语句
; q) r9 S; f* g2 { (1) from <statement sequence1>( W( T$ \* R9 D6 s0 V+ z
until <condition> loop
. U9 F) `' [& @' e# l* P/ P; y <statement sequence2>;, U3 x8 F0 U- Z/ F% Y
end;
: Y4 f/ `1 Z X (2) while <condition> loop
2 }3 q s i2 G1 H5 x <statement sequence1>;6 Y" |! d+ o2 z
end;
+ Z- t" j* \4 U: d; D4 k( Q# \; J (3) repeat
( V$ Q$ D' t- J' U% D9 L <statement sequence1>;
" T% C' F5 O: p! D8 i7 O( J% \ until <condition>;+ B8 r3 S! ~2 i% r
(4) for <condition> to <condition> loop4 y5 b; @1 l7 S4 \6 U
<statement sequence1>;3 N% ~2 P* N$ j0 S4 J) G
next;
8 `# K0 @: [, I3中断语句9 i, u# s9 L) e7 Q
waituntil <condition> prio <integer expression>;
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以上为常用的函数！, v" q2 G& @6 o8 L8 ^, n/ L
还有很多，如有需要我把资料发到你邮箱里 3 P8 ~7 @) m" C; N6 l9 h' ^8 d
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