摘要：
1.首先我们有一个PHP内置函数 count(); count(array,mode); array是数组，mode默认为0，1是递归的计数 <?php if(count($arr) == count($arr,1)){ echo "是一维";}else{ echo "不是一维";} 阅读全文
posted @ 2018-11-06 20:03
龙卷风之殇
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摘要：
Loaded plugins: fastestmirror, langpacksOne of the configured repositories failed (Unknown),and yum doesn't have enough cached data to continue. At th 阅读全文
posted @ 2018-11-06 15:46
龙卷风之殇
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