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发表于 2012-11-13 08:48:12
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1判断语句
; W9 t5 c3 O1 v2 {7 ^7 n2 \ if <condition> then% R$ r+ |) C% K6 r% a
<statement sequence1>;4 h/ f7 p* q. [+ V8 M- c- D
elseif <condition> then
( z8 t2 T% P# w <statement sequence2>;
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# o* `; M# `7 k1 u% W4 ] <statement sequence3>;( h) ^3 r& j9 S9 _2 Y( {
end;
3 T4 H8 w; L% }如果分支比较多，用：
5 [* j2 L1 O0 u# I4 P( z8 x9 q7 U inspect <expression>( D0 n# X5 b4 X+ _! \, Y+ o% |
when <constant_list> then; ~/ Q3 O7 b3 Q/ y8 C; V$ R f
<statement sequence1>;# o( j& E% B0 S9 l
when <constant_list> then
# u; M7 C+ L3 x! L8 E <statement sequence2>;( |8 R- i" y7 c. V4 L2 ?1 R1 b
..., G( h1 Q9 v8 d! K, q8 ]
else
; c8 c" K9 t9 {2 ?: U& p <statement sequence3>;
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5 H) E7 J8 M" Q( a" v+ s2循环语句& X$ R) d2 g2 @& r% x
(1) from <statement sequence1>
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<statement sequence2>;
2 `2 x0 U9 _* ?# u0 Q end;7 T+ a2 I- A% B/ x
(2) while <condition> loop+ t8 M0 P1 ]) o ^' H6 B
<statement sequence1>;
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(3) repeat + D* {+ ?! ~3 n7 F
<statement sequence1>;8 b) L6 B ?( N8 C
until <condition>;1 z: R) H; w, E# }& R
(4) for <condition> to <condition> loop
0 g! \4 J6 Q/ C$ \ <statement sequence1>;1 V" d8 `- j$ q! @) i; c4 `
next;
: l$ P9 n2 n2 O4 j4 s) v/ |. O3中断语句
9 n2 a L* U% J, ?, B: L, n& | waituntil <condition> prio <integer expression>;, g# V" S# O" k. d
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以上为常用的函数！) o& K. m* G# h8 h& w! V
还有很多，如有需要我把资料发到你邮箱里
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