如何用linux命令来从一个字符串中获得数字

2025-02-26 03:25:10
推荐回答(1个)
回答1:

自己写个函数吧~借助strstr()函数intsubstringnum(constunsignedchar*src,constunsignedchar*sub){if(src==NULL||sub==NULL)rerturn-1;unsignedchar*pchar=src;intcount=0;while(pchar=strstr(pchar,sub)){count++;};returncount;}