在Visual Basic中,与程序段:a = a + bb = a - ba = a - b功能相同的程序段是A. a = b b = aB. a = a + b a = a - b b = a - bC.t = aa = bb = tD. If a > b Thena = b Elseb = a End If
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![在Visual Basic中,与程序段:a = a + bb = a - ba = a - b功能相同的程序段是A. a = b b = aB. a = a + b a = a - b b = a - bC.t = aa = bb = tD. If a > b Thena = b Elseb = a End If](/uploads/image/z/13736650-58-0.jpg?t=%E5%9C%A8Visual+Basic%E4%B8%AD%2C%E4%B8%8E%E7%A8%8B%E5%BA%8F%E6%AE%B5%3Aa+%3D+a+%2B+bb+%3D+a+-+ba+%3D+a+-+b%E5%8A%9F%E8%83%BD%E7%9B%B8%E5%90%8C%E7%9A%84%E7%A8%8B%E5%BA%8F%E6%AE%B5%E6%98%AFA.%E3%80%80a+%3D+b%E3%80%80%E3%80%80b+%3D+aB.%E3%80%80a+%3D+a+%2B+b%E3%80%80%E3%80%80a+%3D+a+-+b%E3%80%80%E3%80%80b+%3D+a+-+bC.t+%3D+aa+%3D+bb+%3D+tD.%E3%80%80If+a+%3E+b+Thena+%3D+b%E3%80%80%E3%80%80Elseb+%3D+a%E3%80%80%E3%80%80End+If)
在Visual Basic中,与程序段:a = a + bb = a - ba = a - b功能相同的程序段是A. a = b b = aB. a = a + b a = a - b b = a - bC.t = aa = bb = tD. If a > b Thena = b Elseb = a End If
在Visual Basic中,与程序段:
a = a + b
b = a - b
a = a - b
功能相同的程序段是
A. a = b
b = a
B. a = a + b
a = a - b
b = a - b
C.t = a
a = b
b = t
D. If a > b Then
a = b
Else
b = a
End If
在Visual Basic中,与程序段:a = a + bb = a - ba = a - b功能相同的程序段是A. a = b b = aB. a = a + b a = a - b b = a - bC.t = aa = bb = tD. If a > b Thena = b Elseb = a End If
答案为c
'设a的初始值为20,b的初始值为1
a = a + b 'a的值为21
b = a - b 'b的值为20.即 b=a的初始值
a = a - b 'a=21-20=1=b的初始值,即a=b的初始值
简化之后就是
t = a'中转
a=b
b=t