(245)八 的八进制展开是多少啊（8是下标)

(245)8 的八进制展开是多少啊（8是下标)
如题。


为什么1和2结果不同

1

<br />
2*8^2 + 4*8^1 +5<br />
128+32+5<br />
结果：165<br />
<br />

2

<br />
245 = 8*30 +5<br />
30  = 8*3  +6<br />
3   = 8*0  +3<br />
结果：365<br />

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------解决方案--------------------
代码2中，你把8进制数当做10进制数处理了
php 是这样表示 8 进制的

echo 0245; //165<br />

php 是这样做数制转换的

echo base_convert('245', 8, 10);

Related labels：

165 echo nbsp php

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