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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
, @4 [( X% ]1 z" K1 n9 Y if <condition> then
+ j, j [( S, O6 @; q- k <statement sequence1>;
. @7 h8 N! |* ]& k% E- J9 K elseif <condition> then9 [* B+ _: |1 l1 s* x( s1 B# z
<statement sequence2>;: e0 ^+ ]) Y( A/ |! s
else : p K, b, j! G& ~8 ?
<statement sequence3>;3 c' q: @$ E- I$ _: [* ^9 c8 W3 l2 y
end;- t" k3 c; l% ~
如果分支比较多，用：
& k2 q3 Z1 h5 g. P' g inspect <expression>4 B. L1 s% h0 x+ Q Q0 Y9 c
when <constant_list> then
0 p8 A, W9 d2 Y <statement sequence1>;% ?" H& D; K# v0 F, z' o9 F
when <constant_list> then6 e' _0 c o$ I" n' `* z& ` a
<statement sequence2>;* l5 z6 D2 D+ U
...
+ A' d" M) e& `6 z# |2 Y else0 [: g) r) C) h% ]/ @4 n" Y6 ^
<statement sequence3>;0 _5 N% i" n; z4 Q2 Z
end;
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2循环语句
- k: p7 P& {# N: l1 M9 i (1) from <statement sequence1>( S8 M5 e4 L0 n; z
until <condition> loop
7 s* Y1 ~. r5 e- f <statement sequence2>;5 q- l7 n( [4 ~7 g2 ?
end;# d: \. x- F8 c7 Q3 {2 H5 T8 U
(2) while <condition> loop( l+ B u( Z% r% o5 S. E& \; y+ D
<statement sequence1>;
4 {* i: t, N& J1 w6 u$ [1 n end;6 v1 Q" v1 `! R3 n# O2 S
(3) repeat , ?4 n1 A( q: C! J Q5 v
<statement sequence1>;" `$ t( i: W# [7 |
until <condition>;
) I2 v! w8 }& x9 e; z (4) for <condition> to <condition> loop' B3 M& c3 Q; v' C# C8 p0 z1 U
<statement sequence1>;$ Q/ V6 i3 K- T$ u( P$ `) w h6 r f
next;( p; Z& U5 w2 V6 t2 i+ m
3中断语句
- R" B% R) e( p" z# p waituntil <condition> prio <integer expression>;+ | j* q; [# i8 [2 {% Q
; ^6 m7 i M1 M' ]; ]# ]
+ r0 F; O+ ?* b+ A! W以上为常用的函数！. U, j) b7 [ n3 o5 U5 A+ {3 p- C
还有很多，如有需要我把资料发到你邮箱里
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