Note that numeric literals do not include a sign; a phrase like -1 is actually an expression composed of the operator - and the literal 1.
注意数值型的字面值不包括符号(译注：正负号)，像- 1实际上是个组合了一元运算符“-”和字面值1的表达式。
The realized methods of the reproduction operator, cross operator and mutation operator on account of real numeric encoding are suggested.
对基于实数值编码的繁殖算子、交叉算子、变异算子给出了具体的操作方法。
Note that numeric literals do not include a sign; a phrase like -1 is actually an expression composed of the unary operator '-' and the literal 1.
注意数值型的字面值不包括符号(译注：正负号)，像- 1实际上是个组合了一元运算符“-”和字面值1的表达式。
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