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move-rectangle.for(33): error #5078: Unrecognized token '?' skipped 
      r=sqrt((x-x0)**2+(y-(y0+v*t))**2) 
----------------------------------^ 
move-rectangle.for(33): error #5078: Unrecognized token '?' skipped 
      r=sqrt((x-x0)**2+(y-(y0+v*t))**2) 
-----------------------------------^ 
move-rectangle.for(33): error #5082: Syntax error, found END-OF-STATEMENT when expecting one of: ) :: , : 
      r=sqrt((x-x0)**2+(y-(y0+v*t))**2) 
----------------------------------------^ 
compilation aborted for move-rectangle.for (code 1) 
TypeError: not all arguments converted during string formatting 
 
大佬们 这是什么问题啊 初学者不太懂 
 
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