left:
copy(YourString,1,HowMuchToGet).
right:
copy(YourString,length(YourString)-HowMuchToGet+1,HowMuchToGet);
Mid:
copy(YourString,IndexBegin,HowMuchToGet);
copy(YourString,1,HowMuchToGet).
right:
copy(YourString,length(YourString)-HowMuchToGet+1,HowMuchToGet);
Mid:
copy(YourString,IndexBegin,HowMuchToGet);
解决方案 »
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