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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
$ U/ R2 N* q) |% Z$ L: p, v0 v% j if <condition> then
& A1 B7 y* r2 N <statement sequence1>;# b7 h% s" l0 {) q, v" M* G
elseif <condition> then! P3 u- r. Z4 m; R, [
<statement sequence2>;2 }0 w/ t# X0 b) q$ {
else
9 b( v8 k. ?9 A: y! d/ n; ]/ s <statement sequence3>;# ~4 Q( m5 b' T' u( `. ^- _" i
end;
3 F. f, M6 ?# Z8 z' }+ `; u% o如果分支比较多，用：" A1 N/ _6 G0 Z; `/ Z8 o- A7 _2 x
inspect <expression>0 R [( D( W) Y" h1 P1 e3 Y
when <constant_list> then1 w0 D0 L8 h- G% ~; T
<statement sequence1>;$ x+ l& S; i0 |9 Z. z) Y
when <constant_list> then
1 ~3 M3 _0 X) @3 t+ w9 B <statement sequence2>;
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else' b b4 q0 t. f9 e4 q' A
<statement sequence3>;" B6 D7 [+ X% E) X. {* @
end;2 I* L# t" X8 ], }; r. P+ }. E
5 x( Z Y' w |" |# G T8 A& p2循环语句
* I7 e/ m/ S0 |: ?. s (1) from <statement sequence1>4 u1 Z; c4 G# k8 k4 w
until <condition> loop
* o/ E7 N! B) I6 i" E7 O* | Y9 g <statement sequence2>;, j1 b4 J0 g6 }8 E, h
end;
& i1 @- T9 F$ o8 T (2) while <condition> loop6 z2 W: {7 q& n- R
<statement sequence1>;
! a% f$ F# S. K# x3 w4 S# W end; m5 A( q- M' E) L% U9 j
(3) repeat . B" G! U; q1 x: L% Q
<statement sequence1>;4 v3 w/ b" `; }0 P/ ]
until <condition>;! V8 K3 k- a2 o Y3 n2 S- l/ \
(4) for <condition> to <condition> loop
7 U0 L! i: |- g6 S <statement sequence1>;2 Q+ c V9 v3 q. s+ ]4 U4 I J
next;2 G# Z+ w& `$ I/ o7 R2 ?
3中断语句
! H3 G- P. _! Y# z) q waituntil <condition> prio <integer expression>;) a# u! B4 s& C9 o$ V
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以上为常用的函数！+ C- L m" n; b" b3 A4 v1 {+ O. h! {
还有很多，如有需要我把资料发到你邮箱里
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