... 全包含
for index in 1...3
{
print(index)
//输出1,2,3
}
.. 半包含
for index in 1..3
{
print(index)
//输出 1 ,2
}
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for index in 1...3
{
print(index)
//输出1,2,3
}
for index in 1..3
{
print(index)
//输出 1 ,2
}
sollyu
这个人很懒,什么都没留下