Yuan zu de dingyi

dimensions = (200,50)
print(dimensions[0])
print(dimensions[1])

#尝试修改元组dimensions的一个元素，会导致Python返回类型错误消息

#dimensions[0] = 250

my_t = (3,)
print(my_t)

for dimension in dimensions:
    print(dimension)

dimensions = (200,50)
print("Original dimensions:")
for dimension in dimensions:
    print(dimension)

dimensions = (400,100)
print("nModified dimensions:")
for dimension in dimensions:
    print(dimension)