初学c，squeeze(s1,s2)练习出错，请指导

Question

squeeze（s1,s2),将字符串s1中任何以字符串s2中字符匹配的字符都删掉#includevoidsqueeze(chars1[],chars2[]){inti,j,k;for(i=k=0;s1[i]!='\0';i++){for(j=0;s2[j]!='\0'&&s2[j]!=s1[j];j++);if(s2[j]=='\0')s1[k++]=s1[i];}s1[k]='\0';}main(){chars1[],s2[];s1="1234567";s2="345";squeeze(s1,s2);printf("%s,%s"s1,s2);}出错显示squeeze_12.c:Infunction‘main’:squeeze_12.c:18:7:error:arraysizemissingin‘s1’squeeze_12.c:18:13:error:arraysizemissingin‘s2’squeeze_12.c:19:5:error:incompatibletypeswhenassigningtotype‘char[1]’fromtype‘char*’squeeze_12.c:20:5:error:incompatibletypeswhenassigningtotype‘char[1]’fromtype‘char*’squeeze_12.c:22:19:error:expected‘)’before‘s1’squeeze_12.c:22:19:warning:format‘%s’expectsamatching‘char*’argument[-Wformat]squeeze_12.c:22:19:warning:format‘%s’expectsamatching‘char*’argument[-Wformat]

Answer 1

先简单说说：
1、chars1[];chars2[];s1="sdfdsf";s2="sdfsdf";这是不合法的
2、main函数是应该有返回值的
打完球回来再细说:)