var A = 10
var B = 20
var C = 100
C = A + B
print("C 结果为:\(C)")
C += A
print("C 结果为:\(C)")
C -= A
print("C 结果为:\(C)")
C *= A
print("C 结果为:\(C)")
C /= A
print("C 结果为:\(C)")
//以下测试已注释,可去掉注释测试每个实例
/*
C %= A
print("C 结果为:\(C)")
C <<= A
print("C 结果为:\(C)")
C >>= A
print("C 结果为:\(C)")
C &= A
print("C 结果为:\(C)")
C ^= A
print("C 结果为:\(C)")
C |= A
print("C 结果为:\(C)")
*/