char str[]={"January","Februray","March","Apri","May","June","August","September","October","November"};这样写对吗

这样的写法基本上是正确的，但是存在一个拼写错误，"Februray"应该是"February"。此外，这个字符数组没有指定长度，如果在程序中对其进行修改，可能会导致溢出问题。因此，更好的写法是在定义时指定数组的长度，例如：

char str[][10]={"January","February","March","April","May","June","July","August","September","October","November","December"};

这样定义的话，每个字符串都有10个字符的空间，可以保证足够存储对应的月份名称。