问题
选择题
已知变量a、b已被赋值，要交换a、b的值，采用的算法是（ ）
A．a =" b," b =" a"
B．a =" c," b =" a," c =" b"
C．a =" c," b =" a," c =" a"
D．c =" a," a =" b," b = c
答案
答案：D
搜题请搜索小程序“爱下问搜题”
已知变量a、b已被赋值，要交换a、b的值，采用的算法是（ ）
A．a =" b," b =" a"
B．a =" c," b =" a," c =" b"
C．a =" c," b =" a," c =" a"
D．c =" a," a =" b," b = c
答案：D