比如有这样一个数组
char a[][] = {"a3","b14","c2","a6","c2","D"} char a[][] = {"a3","b14","c2","a6",
char a[][] = {"a3","b14","c2","a6","c2","D"} char a[][] = {"a3","b14","c2","a6",
阅读背景：
怎样获取二维字符串数组的一维长度
来源：互联网
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