y=cos (x+1)+√x2+1, x =10 x ×√ x +√ x，其他，计算分段函数的值，采用单分支结构if语句实现，采用双分支if语句实现

采用单分支结构if语句实现：

x = 10
if x <= 0:
    y = 0
elif 0 < x <= 1:
    y = x
elif 1 < x <= 10:
    y = math.cos(x + 1) + math.sqrt(x ** 2 + 1)
else:
    y = 2 * x * math.sqrt(x) + math.sqrt(x)
print(y)

采用双分支if语句实现：

x = 10
if x <= 0:
    y = 0
else:
    if 0 < x <= 1:
        y = x
    elif 1 < x <= 10:
        y = math.cos(x + 1) + math.sqrt(x ** 2 + 1)
    else:
        y = 2 * x * math.sqrt(x) + math.sqrt(x)
print(y)