uusad的专栏

<br />1.首先创建HelloWorld.java文件：<br />class Person { public String name; public int age; public boolean student; Person(String name, int age, boolean student){ this.name = name; this.age = age; this.student = student; } public String

dlopen第三方动态库时经常会发生打开失败的错误，可以适用dlerror()函数查看具体错误：void *dlh;dlh = dlopen("libdes3-32.so", RTLD_NOW | RTLD_GLOBAL);if (dlh == NULL){ printf("dlopen err:%s.\n",dlerror());}如果错误信息与ELF格式相关，一般