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发表于 2012-11-13 08:48:12
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1判断语句
, k* d9 I& E8 F8 t- r if <condition> then
* M# C+ ]+ {, I2 o0 \, M <statement sequence1>;
1 ]! N( n6 L3 P' X; \' y1 u8 o elseif <condition> then
9 P1 s5 M. e# C- w' g <statement sequence2>;
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<statement sequence3>;5 M& M/ S1 Y$ f
end;
9 Q0 A$ e1 Y; M8 ?) n如果分支比较多，用：
- Z2 i% d2 F2 Z# J6 O' @1 i inspect <expression>1 B- j: x' ^. P+ \* L. R2 U
when <constant_list> then1 ?: X+ k0 I" a3 @2 P% l
<statement sequence1>;) W* ~, l" q* W; r& W6 @
when <constant_list> then7 ]) S% |) X6 M2 j
<statement sequence2>;
6 Z# r! _- j) E8 k& I' G ...
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<statement sequence3>;0 q$ P. r5 M# @; a- H6 w/ h* N
end;
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" f, p" b8 ~4 {$ H' `8 {6 r7 K3 z2循环语句
8 R7 H, ?3 o9 E9 Y, z& i (1) from <statement sequence1>, `6 E" d0 f' s1 L7 S
until <condition> loop' J5 t7 T0 c' E
<statement sequence2>;4 i: ~$ S& G! w* s" |7 K k
end;
! C- a& C9 X1 f/ F (2) while <condition> loop9 ^5 s, M, Q% d) T
<statement sequence1>;1 p1 R' A0 [( t9 a
end;! V2 I; Z. v. Z
(3) repeat
. F3 ^* G; v9 i9 G <statement sequence1>;- f. [- i" W! ^4 H! q$ C/ T* x
until <condition>;
) ~. y5 {* N" P6 C (4) for <condition> to <condition> loop1 z: n6 B# e0 d; G- \( r
<statement sequence1>;
- I1 Z% F$ g3 \, m7 m" O next;- ^8 l- w; C0 h+ E* g( C
3中断语句
9 K9 p1 m2 j. E+ `) c3 A waituntil <condition> prio <integer expression>;
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以上为常用的函数！& s4 t* j, E* `) T7 K, s
还有很多，如有需要我把资料发到你邮箱里 ( ^& ~# O, H& l5 F1 A+ J
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