Squeak語法筆記--數字

這是Squeak(Smalltalk)有關數字的語法

| x |
x := 5 + 3.                                                 
x := 5 - 3.                                                 
x := 5 * 3. 
x := 5 / 3.                                                
x := 5.0 / 3.0.                                             
x := 5.0 // 3.0.                                           
x := 5.0 \\ 3.0.                                           
x := -5.                                                 
x := 5 sign.                                               
x := 5 negated.                                            
x := 3.14 integerPart.                                       
x := 3.14 fractionPart.                                      
x := 5 reciprocal.
x := 5 squared.                                           
x := 25 sqrt.                                             
x := 5 raisedTo: 2.                                       
x := 5 raisedToInteger: 2.                                
x := 10 exp.                                                 
x := -5 abs.                                            
x := 3.14 rounded.                                       
x := 3.14 truncated.                                       
x := 3.14 roundTo: 1.                                      
x := 3.14 truncateTo: 1.                              
x := 3.14 floor.                                           
x := 3.14 ceiling.                                        
x := 5 factorial.   
x := 99 atRandom.                                       
x := 360 degreesToRadians.                                
x := 3.14 radiansToDegrees.

下圖中的[run code]指令積木是我自己DIY的.專門用來跑Squeak code的,叔叔有練過的,小朋友不要亂試,右邊則是數字處理的結果List列表

寄件者 scratchlab