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Array definition format

2022-07-19 01:55:00 【yijie_ 01】

int A[][]={ {1,2,3},{4,5,6},{7,8,9}}  Report errors

int A[3][]={ {1,2,3},{4,5,6},{7,8,9}} Report errors

int A[][3]={ {1,2,3},{4,5,6},{7,8,9}} The successful running

Conclusion ： The number of rows can be determined by the number of inner braces in the initial value , The number of columns must be specified .

It is worth mentioning that , our C There is no string data type in the language , Therefore, the implementation of string mainly depends on character array

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