operand

• Operands should normally be of the same type
  操作数通常应为同一类型。
• On the same operand types you want to use for
  的同一操作数类型上定义了
• The arithmetic result represents the sum of the two operands
  算术结果为两个操作数的和。
• The result is the quotient of the two operands
  结果是两个操作数的商。
• Computes the bitwise or of its operands
  计算操作数的按位“或”结果。
• If one or both operands of a floating - point operation are
  如果浮点运算的一个或两个操作数为
• Cannot be used as the operand of an increment operator
  的变量不能用作增量运算符的操作数。
• Operation on a numeric type is simply the value of the operand
  运算的结果就是操作数的值。
• Evaluates to true if the operand evaluates to
  如果操作数计算的结果为