（六）QT专题-字符串引用传递

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字符参数传递：

//Method 1
static char str[10] = {'H','e','l','l','o','W','o','r','l','d'};
return (void*)(&(str));

//Method 2
static string str = "HelloWorld2";
static char ch[4096];   //依然需要字符指针
strcpy(ch,str.c_str());  //将字符串转换为字节数组，然后再进行传递
return (void*)(&(ch));

参数接收

    char* str;
    if(pid[1] != 0)
    {
        pthread_join(pid[1],(void**)&str);
        cout<<"&str:"<<(&str)<<endl;
        printf("Hahaha\n");
        printf("get thread 1 exitcode: %s\n",str);
    }