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//Expressions example //The first expression.Its value is the Number //value 30 10 + 20; //The second expression¨äȬ°¦r¦ê //"Hello World".¥¦¦û¥Î¨â¦æ¡C "Hello " + "World"; //The third expression.¨äȬ°¼Æ¦r«¬§O {q³f©ú²Ó.¼Æ¶q} * 2 - 5; //The fourth expression.¨äȬ°¦r¦ê«¬§O If {q³f©ú²Ó.¼Æ¶q} > 1 Then "¦h«³æ¦ì" Else "³æ¤@³æ¦ì"; //The fifth and final expressionIts value is the //Number value 25 20 + 5
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20 + 5;
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Else "³æ¤@³æ¦ì";
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//First expression.It declares the Number variable x //and then returns the value of an uninitialized //Number variable, which is 0. NumberVar x; //Second expression.It assigns the value of 30 to x, //and returns 30. x:=30
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