;35 : DExtend de; - - - - - - main栈 - - - - - -
0x401369 lea -0x10(%ebp),%eax
0x40136c mov %eax,%ecx
0x40136e call 0x438628 <DExtend::DExtend()> //定义时调用空构造函数
0x40138a lea -0x10(%ebp),%eax
0x40138d mov %eax,%ecx
0x40138f call 0x438640 <DExtend::~DExtend()> //退出时调用析构函数
0x401394 mov %ebx,%eax
;36 : de.showNumber(agrc);
0x401373 lea -0x10(%ebp),%eax
0x401376 mov (%ebx),%edx //传入第一个形参
0x401378 mov %edx,(%esp)
0x40137b mov %eax,%ecx
0x40137d call 0x4385c8 <DExtend::showNumber(int)> //调用showNumber函数
0x401382 sub $0x4,%esp
;22 : class DExtend: public CBase {
0x438628 push %ebp
0x438629 mov %esp,%ebp
0x43862b sub $0x18,%esp
0x43862e mov %ecx,-0xc(%ebp) //
0x438631 mov -0xc(%ebp),%eax
0x438634 mov %eax,%ecx
0x438636 call 0x438598 <CBase::CBase()> //调用父类构造函数
0x43863b nop
0x43863c leave
0x43863d ret
;7 : CBase() {
0x438598 push %ebp
0x438599 mov %esp,%ebp
0x43859b sub $0x28,%esp
0x43859e mov %ecx,-0xc(%ebp)
;8 : printf("CBase...\n");
0x4385a1 movl $0x4b9024,(%esp)
0x4385a8 call 0x430b30 <puts> //调用无参打印函数puts
;9 : }
0x4385ad nop
0x4385ae leave
0x4385af ret
;24 : void showNumber(int number) {
0x4385c8 push %ebp
0x4385c9 mov %esp,%ebp
0x4385cb sub $0x28,%esp
0x4385ce mov %ecx,-0xc(%ebp)
;25 : setNumber(number);
0x4385d1 mov -0xc(%ebp),%eax
0x4385d4 mov 0x8(%ebp),%edx //传入形参一
0x4385d7 mov %edx,(%esp)
0x4385da mov %eax,%ecx
0x4385dc call 0x438580 <CBase::setNumber(int)> 调用setNumber
0x4385e1 sub $0x4,%esp
;26 : dNumber = number + 1;
0x4385e4 mov 0x8(%ebp),%eax
0x4385e7 lea 0x1(%eax),%edx //传入形参一+1的结果
0x4385ea mov -0xc(%ebp),%eax
0x4385ed mov %edx,0x4(%eax) //传给类变量dNumber
;27 : printf("cNumber: %d\n", getNumber());
0x4385f0 mov -0xc(%ebp),%eax
0x4385f3 mov %eax,%ecx
0x4385f5 call 0x438570 <CBase::getNumber()> //调用getNumber
0x4385fa mov %eax,0x4(%esp) //传入getNumber返回值
0x4385fe movl $0x4b9037,(%esp)
0x438605 call 0x430b38 <printf>
;28 : printf("dNumber: %d\n", dNumber);
0x43860a mov -0xc(%ebp),%eax
0x43860d mov 0x4(%eax),%eax //取类变量dNumber
0x438610 mov %eax,0x4(%esp)
0x438614 movl $0x4b9044,(%esp)
0x43861b call 0x430b38 <printf>
;29 : }
0x438620 nop
0x438621 leave
0x438622 ret $0x4
;13 : void setNumber(int number) {
0x438580 push %ebp
0x438581 mov %esp,%ebp
0x438583 sub $0x4,%esp
0x438586 mov %ecx,-0x4(%ebp)
;14 : cNumber = number;
0x438589 mov -0x4(%ebp),%eax
0x43858c mov 0x8(%ebp),%edx
0x43858f mov %edx,(%eax)
;15 : }
0x438591 nop
0x438592 leave
0x438593 ret $0x4
;16 : int getNumber() {
0x438570 push %ebp
0x438571 mov %esp,%ebp
0x438573 sub $0x4,%esp
0x438576 mov %ecx,-0x4(%ebp)
;17 : return cNumber;
0x438579 mov -0x4(%ebp),%eax
0x43857c mov (%eax),%eax
;18 : }
0x43857e leave
0x43857f ret