From 2a3143019016bc4adb07372e37e0f83133f54736 Mon Sep 17 00:00:00 2001 From: light-city <455954986@qq.com> Date: Fri, 26 Jul 2019 20:02:15 +0800 Subject: [PATCH] update dir --- README.md | 1 + struct/README.md | 228 ++++++++++++++++++++++++++++++ struct/ext | Bin 0 -> 9616 bytes struct/ext_struct_func.cpp | 28 ++++ struct/sf | Bin 0 -> 8992 bytes struct/stff | Bin 0 -> 9152 bytes struct/struct_func | Bin 0 -> 8768 bytes struct/struct_func.c | 27 ++++ struct/struct_func.cpp | 25 ++++ struct/struct_func_func.cpp | 39 +++++ struct/stu | Bin 0 -> 9112 bytes struct_class/README.md | 222 +++++++++++++++++++++++++++++ struct_class/ext | Bin 0 -> 9616 bytes struct_class/ext_struct_func.cpp | 28 ++++ struct_class/sf | Bin 0 -> 8992 bytes struct_class/stff | Bin 0 -> 9152 bytes struct_class/struct_func | Bin 0 -> 8768 bytes struct_class/struct_func.c | 27 ++++ struct_class/struct_func.cpp | 25 ++++ struct_class/struct_func_func.cpp | 39 +++++ struct_class/stu | Bin 0 -> 9112 bytes 21 files changed, 689 insertions(+) create mode 100644 struct/README.md create mode 100755 struct/ext create mode 100644 struct/ext_struct_func.cpp create mode 100755 struct/sf create mode 100755 struct/stff create mode 100755 struct/struct_func create mode 100644 struct/struct_func.c create mode 100644 struct/struct_func.cpp create mode 100644 struct/struct_func_func.cpp create mode 100755 struct/stu create mode 100644 struct_class/README.md create mode 100755 struct_class/ext create mode 100644 struct_class/ext_struct_func.cpp create mode 100755 struct_class/sf create mode 100755 struct_class/stff create mode 100755 struct_class/struct_func create mode 100644 struct_class/struct_func.c create mode 100644 struct_class/struct_func.cpp create mode 100644 struct_class/struct_func_func.cpp create mode 100755 struct_class/stu diff --git a/README.md b/README.md index 958cc51..1d81c4a 100644 --- a/README.md +++ b/README.md @@ -18,6 +18,7 @@ - [x] [assert那些事](./assert) - [x] [位域那些事](./bit) - [x] [extern那些事](./extern) +- [x] [C和C++中struct那些事](./struct) ## 关于作者： 个人公众号： diff --git a/struct/README.md b/struct/README.md new file mode 100644 index 0000000..264435d --- /dev/null +++ b/struct/README.md @@ -0,0 +1,228 @@ +# 一文搞懂C和C++中struct + +## 关于作者： + +个人公众号： + +![](../img/wechat.jpg) + +## 1.C中struct + +- 在C中struct只单纯的用作数据的复合类型，也就是说，在结构体声明中只能将数据成员放在里面，而不能将函数放在里面。 +- 在C结构体声明中不能使用C++访问修饰符，如：public、protected、private 而在C++中可以使用。 +- 在C中定义结构体变量，如果使用了下面定义必须加struct。 +- C的结构体不能继承（没有这一概念）。 +- 若结构体的名字与函数名相同，可以正常运行且正常的调用！例如：可以定义与 struct Base 不冲突的 void Base() {}。 + +完整案例： + +```c +#include + +struct Base { // public + int v1; +// public: //error + int v2; + //private: + int v3; + //void print(){ // c中不能在结构体中嵌入函数 + // printf("%s\n","hello world"); + //}; //error! +}; + +void Base(){ + printf("%s\n","I am Base func"); +} +//struct Base base1; //ok +//Base base2; //error +int main() { + struct Base base; + base.v1=1; + //base.print(); + printf("%d\n",base.v1); + Base(); + return 0; +} +``` + +最后输出： + +``` +1 +I am Base func +``` + +完整代码见：[struct_func.c](./struct_func.c) + +## 2.C++中struct + +与C对比如下： + +- C++结构体中不仅可以定义数据，还可以定义函数。 +- C++结构体中可以使用访问修饰符，如：public、protected、private 。 +- C++结构体使用可以直接使用不带struct。 +- C++继承 +- 若结构体的名字与函数名相同，可以正常运行且正常的调用！但是定义结构体变量时候只用用带struct的！ + +例如： + +> 情形1：不适用typedef定义结构体别名 + +未添加同名函数前： + +```c++ +struct Student { + +}; +Student(){} +Struct Student s; //ok +Srudent s; //ok +``` + +添加同名函数后： + +```c++ +struct Student { + +}; +Student(){} +Struct Student s; //ok +Srudent s; //error +``` + +> 情形二：使用typedef定义结构体别名 + +```c++ +typedef struct Base1 { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}B; +//void B() {} //error! 符号 "B" 已经被定义为一个 "struct Base1" 的别名 +``` + +> 前三种案例 + +```c++ +#include +#include + +struct Base { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}; + +int main() { + struct Base base1; //ok + Base base2; //ok + Base base; + base.v1=1; + base.v3=2; + base.print(); + printf("%d\n",base.v1); + printf("%d\n",base.v3); + return 0; +} +``` + +完整代码见：[struct_func.cpp](struct_func.cpp) + +> 继承案例 + +```c++ +#include +#include +struct Base { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + virtual void print(){ + printf("%s\n","Base"); + }; +}; +struct Derived:Base { + + public: + int v2; + void print(){ + printf("%s\n","Derived"); + }; +}; +int main() { + Base *b=new Derived(); + b->print(); + return 0; +} +``` + +完整代码见：[ext_struct_func.cpp](./ext_struct_func.cpp) + +> 同名函数 + +```c++ +#include +#include + +struct Base { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}; + +typedef struct Base1 { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}B; +void Base(){ + printf("%s\n","I am Base func"); +} +//void B() {} //error! 符号 "B" 已经被定义为一个 "struct Base1" 的别名 +int main() { + struct Base base; //ok + //Base base1; // error! + base.v1=1; + base.v3=2; + base.print(); + printf("%d\n",base.v1); + printf("%d\n",base.v3); + Base(); + return 0; +} +``` +完整代码见：[struct_func_func.cpp](./struct_func_func.cpp) + +## 3.总结 + +### C和C++中的Struct区别 + +| C | C++ | +| ------------------------------------------------------ | ------------------------------------------------------------ | +| 不能将函数放在结构体声明 | 能将函数放在结构体声明 | +| 在C结构体声明中不能使用C++访问修饰符。 | public、protected、private 在C++中可以使用。 | +| 在C中定义结构体变量，如果使用了下面定义必须加struct。 | 可以不加struct | +| 结构体不能继承（没有这一概念）。 | 可以继承 | +| 若结构体的名字与函数名相同，可以正常运行且正常的调用！ | 若结构体的名字与函数名相同，使用结构体，只能使用带struct定义！ | \ No newline at end of file diff --git a/struct/ext b/struct/ext new file mode 100755 index 0000000000000000000000000000000000000000..d450b9f8ebe93e7a673deaa6071f30abb5bdd080 GIT binary patch literal 9616 zcmeHNeQ;b=6~Ea{nr&LP+wx&((Jt8159pGlX-HwDZ}ZW$_#&m%7@*j8|MI}wbILR36iSHH3?b2LQH;CiVCY23xy_D zifhCIAZ2(oSwq|^G0!U3%sooa4PJ_;-em#xE=?AgUt_^&!6J^3IJK82O%*Nv&|*tu zE`(nKWJj@PFOwp8w=6L4R&i8PV3PdumteB1^hy!DTNap4slb?X|EO>Dgp}WqOM^tR zMocux-#jN>qFt|=5i0jrND*9<1?CY87R=f1ldz*WKP>r_V!LW@zH#xW_?fHjikk*v zJ$1D=4Ma8!#Nz4U4a4$K#}(0Q^o6@-&`e{$s$e70X4ZuNx&HI_0kr z-vKB5gadyBxb&mmYo#s(<}qbPdT+Ra=B`c{#{R)X+(?<>q-hw!*nYrhkM579%xJQ4 zAe>4?Q^IHo?Jy$Iq=G{`8V3^bXeit>5Vh)x*X#}LX{)X>jNakla8K+&b@k0ClS{)q zI21Kv@xDZ}F!r`}nDwzl%IFEFqO~pYnAud_d;qw^x(1$7u@B{-(Q**KdyqQYYxQ#| zZK5X#CTxVw=y1%0K((spgW*_QGoZ3X(Ff1KJz;9ia+d2ZS#oKvAVyALWp9TOP`O8_s(RnXI+p&hJXl5p*+(0r-&CD4o-$F8VdFF(aYe=T9&O9#V^(0dlXGW!b z-s2a2qmU(4ztxg?Zl9j{qdxM=g_AOc2B*aMr z9p0^Pp!v~9vR*y&>VXv}$rW{TY1bH4%uYf1Ug^JUoO;z4VEHuF@7C{mTRJ#<$qfg3 z=7N59dW&B2wEo;B^U9pJMeJ?KO3^iLwSVLj*P=fny>vGWr{f5$>*+EtpptiGOJhEK z(DaclB3<^zmtmK4_6`}$PIk>4f(?~BFh!MPm56fsrAxE3dS+aokSk}R(LEQ z{9Z|V%{_;+v$Kf)V`B@Kc8lqiX!q1E49IB`$3!{C`UYU5&q(Xjq&r4aKm8Y2mYu~#rd)6c#y)eCE8sOCrZ8t9+$S7->fIjd)UqYhsdJTXlx?3Bl*_sn>H>g4a|Bd`@Vbn@9$w;?|aMiSO13R zzcurEYvy7TJj`D4TYY4_MBn^I`gM9SZtn_yCfF6+7c|C4^NqfX(U$(yt3&%w1GZAp z6ivnsL?bjQc3O+ziLzL?cG{)z-z)qKMx97gIM?6o@Y}ESx|Lq7Y#e*l3iqwl_#!+y zx_JWp9QYCN(-`?qOxtys$|K<2;E#hJ0RJWGN5Qk;-vzG({xk4;@GSTl@P5n!pHJkf zgKo*8c2P3yD_OC)+%sBI?jxMek{a4v56)CvUx-yuApOyQ&dv^zve&oOTe*G7qPsmu z#Fpi^uHU%oI)X{33D2YG!_@=?y}qNa#>*Cj&@e=*r+$xqK>fX_e*pC#0ngdD=k31* z_zS3CW3TVA>Q@1K3eP_DD`Ky29&x+&S~>(%9B<YISwi25qT5vBSDukR68gSYZwceB@jthB+q_MtM}TXl4S?yVmw-{IAg-uj@oD(GF? z;Ppcf`VC%>JolOK(+NM;_mZ6bpZ@0~px*0qiceuLwG*aDl9SWfgowZC_bbM8Wt8C3D=mtQEK)Tg2^S ztCIccR{Geoq|EJJP_m}#mHB_2@jcer(9>#OUsU`x#V;zpK&_Xn9P5VtY-?=1#lLoU zPdaX<{hI={fvOF4X(?5IuDUKzRU4?TUT0PKYpSa2s_LpXv+aD`ElQ9t(B@Rr**jDe zcMG#9UYc81c4uy^GG0%GI98ilcZGPlC^lbitYV($Lj8q;*GnN@ky}@V_#(mYS0TPw zoKW*nh+iiBMdrgTyt#Z%q5hKG`&x+m#FToE3-P77d_*C>OiWg2c1V`p;_}@4Z?AOY zE5Pr4A%3Nx&H@mxu63#5x08|W%B=k@-NR6z_JSG?+Wj`^Nt%TN|2ejf3XJ3 zJS~^_-0>uhVsTzC1Dm@(H%mWr*TYV!fBBqs*sXB>ZgE5@>1Xabd=VSCA74A?y80~i zufzDPSMSjp<>(>c%Yf6Zk%;&IU!y=c=Uvy!S|Pp$eZMN(+4ttb>H4$GuBgh-0WTKM zqf&qFKJfB9eiq0$=Qgk!__fGd@O=U!E~#c7{Z_^u>-;X@er0QC$ADA(d>`TS#n*u^ zMZ3ITl`5m}EB$3^oca5GY99a31NRk~$CrUqzp}~?_v>wm=l6|H)vg~0i>0osb9p)L z!;K23+pC>61E+bX^Z`*+{tD3ooZ9947M~~f0H<-_`x=h}B}_@5?_GR8GJ*SSc|zr0 z98vmwkCT^nR6Zc_x%tD}u^z~ePwfNjXAJrjk8_-#RsMbIyTIf2B5)dKN@v*VcfgCS z+j6-My@K*8L=pKbM5EL%@_p=0nkh5g*B9tTMsIs#yV2Ux5ke+2pRhE{LF5gQvZMrH zBw_3yNc4mUjEI>?ri^fUSo9_ahX$f%G!nRZ)8^XZN=9ES9y7wpWcZ*Fjho4XqAwX9 zj2e;j;NU@+*d(MjV`hPBbl60mF`4c)jlOieH_$sYgbZhg*;;QHu>`3@tgS|d(+r!j zUg;nf9*7-+gyd{E9zp)qazJubEGCR?tvefntuRUV7%hg(UmC{N_TY|Yqq(h#Qn_+8 zxQx8J(X1;4y{SFtVCUAY9nB#l6l`d1CZmGjBZYv>5(}g0(`~^WEsd1C<#a$}4JB=@ zjB0NxEk_ITzs)UET2|9!wpC?V?M|&k?wkxUC3uyQO3}{A+a~iLn}(9HxJe_@vJ-O}iN%d{3b`2cP1ai(YI0OOb#6q$X4uM1!zQ#R zAG~|!sy3xqRf4MveW_$b=ca;&1}9edqW*ocE>P!ki}Pv zVQ;8Kq0ZRmN!b^M$0H)w4?HMeQ5pgC9ZCGc;TM6_!9g?J18ycQ-p?hBc{DjB0`Y_y z4Iq=h!3^(L(*Afl(36hg&sVXC2$0ktPW6jG5I(t3m8RYG?e<7@bS8<>t;M^)3xk{_nJWPnRHmNY_puhft0OpGQf2 zFXO+1`W4QMzt=2RqhPn^`f)UdKBGAP;Y`JQ}2*$?G3t%6U<%)jEW z_m^u@!%vG6#PM3vT=_9n*xTpxe3i2Q1`n)q!0ocXZ#wKbpZ2^u0P;DI^_~5HLfLaO zd@i0+hDX^@ac6&i=&y!iwm;^u=e)pVg=P2?$AWjZ{|wY{Yt7~7_#Vdp zKEXL&PWu;NyToSCc?J(T1v&Md^2^Yn5a}Hz;`_YsL)yOv8(L~?&-pd}_ajrP|7tnr z;^BTBhpoMR&TnL?Qy^!&EHnQzbnN!IJcw#QmtOKeY{xw7u;+WNuIxEZ_P};5UqXQ} z?mwUNJC)%{R#e<+??&(xf0aXz?Ke4a(j{WP6lHE(R;Zsd>cd5U +#include + +struct Base { + int v1; +// private: //error! 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+}; + +void Base(){ + printf("%s\n","I am Base func"); +} +//struct Base base1; //ok +//Base base2; //error +int main() { + struct Base base; + base.v1=1; + //base.print(); + printf("%d\n",base.v1); + Base(); + return 0; +} +``` + +最后输出： + +``` +1 +I am Base func +``` + +完整代码见：[struct_func.c](./struct_func.c) + +## 2.C++中struct + +与C对比如下： + +- C++结构体中不仅可以定义数据，还可以定义函数。 +- C++结构体中可以使用访问修饰符，如：public、protected、private 。 +- C++结构体使用可以直接使用不带struct。 +- C++继承 +- 若结构体的名字与函数名相同，可以正常运行且正常的调用！但是定义结构体变量时候只用用带struct的！ + +例如： + +> 情形1：不适用typedef定义结构体别名 + +未添加同名函数前： + +```c++ +struct Student { + +}; +Student(){} +Struct Student s; //ok +Srudent s; //ok +``` + +添加同名函数后： + +```c++ +struct Student { + +}; +Student(){} +Struct Student s; //ok +Srudent s; //error +``` + +> 情形二：使用typedef定义结构体别名 + +```c++ +typedef struct Base1 { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}B; +//void B() {} //error! 符号 "B" 已经被定义为一个 "struct Base1" 的别名 +``` + +> 前三种案例 + +```c++ +#include +#include + +struct Base { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}; + +int main() { + struct Base base1; //ok + Base base2; //ok + Base base; + base.v1=1; + base.v3=2; + base.print(); + printf("%d\n",base.v1); + printf("%d\n",base.v3); + return 0; +} +``` + +完整代码见：[struct_func.cpp](struct_func.cpp) + +> 继承案例 + +```c++ +#include +#include +struct Base { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + virtual void print(){ + printf("%s\n","Base"); + }; +}; +struct Derived:Base { + + public: + int v2; + void print(){ + printf("%s\n","Derived"); + }; +}; +int main() { + Base *b=new Derived(); + b->print(); + return 0; +} +``` + +完整代码见：[ext_struct_func.cpp](./ext_struct_func.cpp) + +> 同名函数 + +```c++ +#include +#include + +struct Base { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}; + +typedef struct Base1 { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}B; +void Base(){ + printf("%s\n","I am Base func"); +} +//void B() {} //error! 符号 "B" 已经被定义为一个 "struct Base1" 的别名 +int main() { + struct Base base; //ok + //Base base1; // error! + base.v1=1; + base.v3=2; + base.print(); + printf("%d\n",base.v1); + printf("%d\n",base.v3); + Base(); + return 0; +} +``` +完整代码见：[struct_func_func.cpp](./struct_func_func.cpp) + +## 3.总结 + +### C和C++中的Struct区别 + +| C | C++ | +| ------------------------------------------------------ | ------------------------------------------------------------ | +| 不能将函数放在结构体声明 | 能将函数放在结构体声明 | +| 在C结构体声明中不能使用C++访问修饰符。 | public、protected、private 在C++中可以使用。 | +| 在C中定义结构体变量，如果使用了下面定义必须加struct。 | 可以不加struct | +| 结构体不能继承（没有这一概念）。 | 可以继承 | +| 若结构体的名字与函数名相同，可以正常运行且正常的调用！ | 若结构体的名字与函数名相同，使用结构体，只能使用带struct定义！ | \ No newline at end of file diff --git a/struct_class/ext b/struct_class/ext new file mode 100755 index 0000000000000000000000000000000000000000..d450b9f8ebe93e7a673deaa6071f30abb5bdd080 GIT binary patch literal 9616 zcmeHNeQ;b=6~Ea{nr&LP+wx&((Jt8159pGlX-HwDZ}ZW$_#&m%7@*j8|MI}wbILR36iSHH3?b2LQH;CiVCY23xy_D zifhCIAZ2(oSwq|^G0!U3%sooa4PJ_;-em#xE=?AgUt_^&!6J^3IJK82O%*Nv&|*tu zE`(nKWJj@PFOwp8w=6L4R&i8PV3PdumteB1^hy!DTNap4slb?X|EO>Dgp}WqOM^tR zMocux-#jN>qFt|=5i0jrND*9<1?CY87R=f1ldz*WKP>r_V!LW@zH#xW_?fHjikk*v zJ$1D=4Ma8!#Nz4U4a4$K#}(0Q^o6@-&`e{$s$e70X4ZuNx&HI_0kr z-vKB5gadyBxb&mmYo#s(<}qbPdT+Ra=B`c{#{R)X+(?<>q-hw!*nYrhkM579%xJQ4 zAe>4?Q^IHo?Jy$Iq=G{`8V3^bXeit>5Vh)x*X#}LX{)X>jNakla8K+&b@k0ClS{)q zI21Kv@xDZ}F!r`}nDwzl%IFEFqO~pYnAud_d;qw^x(1$7u@B{-(Q**KdyqQYYxQ#| zZK5X#CTxVw=y1%0K((spgW*_QGoZ3X(Ff1KJz;9ia+d2ZS#oKvAVyALWp9TOP`O8_s(RnXI+p&hJXl5p*+(0r-&CD4o-$F8VdFF(aYe=T9&O9#V^(0dlXGW!b z-s2a2qmU(4ztxg?Zl9j{qdxM=g_AOc2B*aMr z9p0^Pp!v~9vR*y&>VXv}$rW{TY1bH4%uYf1Ug^JUoO;z4VEHuF@7C{mTRJ#<$qfg3 z=7N59dW&B2wEo;B^U9pJMeJ?KO3^iLwSVLj*P=fny>vGWr{f5$>*+EtpptiGOJhEK z(DaclB3<^zmtmK4_6`}$PIk>4f(?~BFh!MPm56fsrAxE3dS+aokSk}R(LEQ z{9Z|V%{_;+v$Kf)V`B@Kc8lqiX!q1E49IB`$3!{C`UYU5&q(Xjq&r4aKm8Y2mYu~#rd)6c#y)eCE8sOCrZ8t9+$S7->fIjd)UqYhsdJTXlx?3Bl*_sn>H>g4a|Bd`@Vbn@9$w;?|aMiSO13R zzcurEYvy7TJj`D4TYY4_MBn^I`gM9SZtn_yCfF6+7c|C4^NqfX(U$(yt3&%w1GZAp z6ivnsL?bjQc3O+ziLzL?cG{)z-z)qKMx97gIM?6o@Y}ESx|Lq7Y#e*l3iqwl_#!+y zx_JWp9QYCN(-`?qOxtys$|K<2;E#hJ0RJWGN5Qk;-vzG({xk4;@GSTl@P5n!pHJkf zgKo*8c2P3yD_OC)+%sBI?jxMek{a4v56)CvUx-yuApOyQ&dv^zve&oOTe*G7qPsmu z#Fpi^uHU%oI)X{33D2YG!_@=?y}qNa#>*Cj&@e=*r+$xqK>fX_e*pC#0ngdD=k31* z_zS3CW3TVA>Q@1K3eP_DD`Ky29&x+&S~>(%9B<YISwi25qT5vBSDukR68gSYZwceB@jthB+q_MtM}TXl4S?yVmw-{IAg-uj@oD(GF? z;Ppcf`VC%>JolOK(+NM;_mZ6bpZ@0~px*0qiceuLwG*aDl9SWfgowZC_bbM8Wt8C3D=mtQEK)Tg2^S ztCIccR{Geoq|EJJP_m}#mHB_2@jcer(9>#OUsU`x#V;zpK&_Xn9P5VtY-?=1#lLoU zPdaX<{hI={fvOF4X(?5IuDUKzRU4?TUT0PKYpSa2s_LpXv+aD`ElQ9t(B@Rr**jDe zcMG#9UYc81c4uy^GG0%GI98ilcZGPlC^lbitYV($Lj8q;*GnN@ky}@V_#(mYS0TPw zoKW*nh+iiBMdrgTyt#Z%q5hKG`&x+m#FToE3-P77d_*C>OiWg2c1V`p;_}@4Z?AOY zE5Pr4A%3Nx&H@mxu63#5x08|W%B=k@-NR6z_JSG?+Wj`^Nt%TN|2ejf3XJ3 zJS~^_-0>uhVsTzC1Dm@(H%mWr*TYV!fBBqs*sXB>ZgE5@>1Xabd=VSCA74A?y80~i zufzDPSMSjp<>(>c%Yf6Zk%;&IU!y=c=Uvy!S|Pp$eZMN(+4ttb>H4$GuBgh-0WTKM zqf&qFKJfB9eiq0$=Qgk!__fGd@O=U!E~#c7{Z_^u>-;X@er0QC$ADA(d>`TS#n*u^ zMZ3ITl`5m}EB$3^oca5GY99a31NRk~$CrUqzp}~?_v>wm=l6|H)vg~0i>0osb9p)L z!;K23+pC>61E+bX^Z`*+{tD3ooZ9947M~~f0H<-_`x=h}B}_@5?_GR8GJ*SSc|zr0 z98vmwkCT^nR6Zc_x%tD}u^z~ePwfNjXAJrjk8_-#RsMbIyTIf2B5)dKN@v*VcfgCS z+j6-My@K*8L=pKbM5EL%@_p=0nkh5g*B9tTMsIs#yV2Ux5ke+2pRhE{LF5gQvZMrH zBw_3yNc4mUjEI>?ri^fUSo9_ahX$f%G!nRZ)8^XZN=9ES9y7wpWcZ*Fjho4XqAwX9 zj2e;j;NU@+*d(MjV`hPBbl60mF`4c)jlOieH_$sYgbZhg*;;QHu>`3@tgS|d(+r!j zUg;nf9*7-+gyd{E9zp)qazJubEGCR?tvefntuRUV7%hg(UmC{N_TY|Yqq(h#Qn_+8 zxQx8J(X1;4y{SFtVCUAY9nB#l6l`d1CZmGjBZYv>5(}g0(`~^WEsd1C<#a$}4JB=@ zjB0NxEk_ITzs)UET2|9!wpC?V?M|&k?wkxUC3uyQO3}{A+a~iLn}(9HxJe_@vJ-O}iN%d{3b`2cP1ai(YI0OOb#6q$X4uM1!zQ#R zAG~|!sy3xqRf4MveW_$b=ca;&1}9edqW*ocE>P!ki}Pv zVQ;8Kq0ZRmN!b^M$0H)w4?HMeQ5pgC9ZCGc;TM6_!9g?J18ycQ-p?hBc{DjB0`Y_y z4Iq=h!3^(L(*Afl(36hg&sVXC2$0ktPW6jG5I(t3m8RYG?e<7@bS8<>t;M^)3xk{_nJWPnRHmNY_puhft0OpGQf2 zFXO+1`W4QMzt=2RqhPn^`f)UdKBGAP;Y`JQ}2*$?G3t%6U<%)jEW z_m^u@!%vG6#PM3vT=_9n*xTpxe3i2Q1`n)q!0ocXZ#wKbpZ2^u0P;DI^_~5HLfLaO zd@i0+hDX^@ac6&i=&y!iwm;^u=e)pVg=P2?$AWjZ{|wY{Yt7~7_#Vdp zKEXL&PWu;NyToSCc?J(T1v&Md^2^Yn5a}Hz;`_YsL)yOv8(L~?&-pd}_ajrP|7tnr z;^BTBhpoMR&TnL?Qy^!&EHnQzbnN!IJcw#QmtOKeY{xw7u;+WNuIxEZ_P};5UqXQ} z?mwUNJC)%{R#e<+??&(xf0aXz?Ke4a(j{WP6lHE(R;Zsd>cd5U +#include + +struct Base { + int v1; +// private: //error! 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+ int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}; + +typedef struct Base1 { + int v1; +// private: //error! + int v3; + public: //显示声明public + int v2; + void print(){ + printf("%s\n","hello world"); + }; +}B; +void Base(){ + printf("%s\n","I am Base func"); +} +//void B() {} //error! 符号 "B" 已经被定义为一个 "struct Base1" 的别名 +int main() { + struct Base base; //ok + //Base base1; // error! + base.v1=1; + base.v3=2; + base.print(); + printf("%d\n",base.v1); + printf("%d\n",base.v3); + Base(); + return 0; +} diff --git a/struct_class/stu b/struct_class/stu new file mode 100755 index 0000000000000000000000000000000000000000..6dabbe152c2f4faf6d091db222b375f2d752acfe GIT binary patch literal 9112 zcmeHNeQaCR6~DIg;kMwokV0t@wOG5gpcto3vM@IKoW$u%m!?^oK*tELj_o8Kjvd+0 zC9Nn+m(s~<%c2djPTB_=+r-$Ub(^*^gh;v|A|_2L6KvDQv<$(N@G;7ODw;~O-?{G| zf4n$=G--cvqW8`{zkANP=iYbkeeWLUOQFtor^6wboZ?nN(sY$3A?q&0pEpWTVa;Nd z(8MNjt*8Q0iA$3;#H|wZMdg~gTj{yLD{wVCEuh({$pZ6hEf_6W#1Rsw_6nq_qQ#$I zZHdf<@JWE|DAvWxr3ijN7MKsKI7Ss`I}*umy+^8pACLv+b1E?A+&}6YUA@X*uTz6W zvPMj_$$Np5E>ZU@W|YbetE337$pZ6E3l_}T?sKrCI6o|Tm12)-Z>4c@tN59#?uwfd z@qwm>n-bBwL_C=ts~c->s%vWSXHx#{vft#Nba!?2$(DE=eUK>TT3j>-sQ$hGd^fQF z^v;jpcjLW(x_8SHgKu70`3urtgNvV=5by|rFrsat7kCIPz;^!)QQ3O3pV z*=NH@d<0iHKSx)4gy#l@ixDS_|_5$$PLCBBdDi=>&;geMwN=1a{lrf``8*ij% z($tMl_aIaPOYhL@F8U4G$z@ zR$cj;JG%Cn&GA&m7zk%#4IRn2*;XGqD2(NJE8&PMVuduCHPI-A6uH}o4Bu@GhT{n_ znvN&ULEw?Gun{(6V{sD#S*hSh!ttco)!EU~x_`g1!{1<)jqOFH?fym@32O>FG2fi3 zTp{Nk)j8x}VP2TqzJ?|25`U*kkOLOq1n2cq8;@fLsSvLzEW06&mFg7lk}_zq=78k1 z7S+;`@_Mg@S3`10#Jc&4a9+z)v$Y5>-tPiMc=38~F2bn|CannPwL^7!5w5mOX`)ZO z?$%FK{%w^{==V>XmGdV^dE#mJjI0(*jekJZ(w66Oui2!bMDj3IF3c@~w)~D{>f*vV zDgTya8j6K!DL+9nE&YWvQvNx~)b)jjrTiGl)a8XqDSwY->gvL{lv^MVPC}Mc|3*jd zxx4h-OZvpi=ev75W~aTYG@;L)eb`NG_E*)KnEwh4-x;jg)F#B^L+E&)UUvXYpIG$h zxmONue4JcSch~k$QN_|6l#faO{WH|dK|jk+QGK6&^k34!*-I`s&~xYYv-3N3$20nK zm&|o}Z)@0F%_h-5W3@m2nFY5`i0s-v7|tgVSpPGXe+1-sTedXi#S2EC*eSA=uYDbM zd1r5t!P2?@g~PC+GMSUoVSxf6YhQGG|P^o%JmhKgrrRGZ%1k&C(P;>3}Qj_fCn z9$8#kLT|2{3S(I2YoPeVew3afafwMfPWhDi{Qt=={-o~INT!~V_wI`%c|Xzj%qLA^zGw=-y29lQF(nKHlv>O4zyg7K=sFP{TubS7S|st*nc0m7yj23*LPd>)b`W3wxT{p^(`LnSDh`M^$)m09^a{o z7SGm`mAWTzyh`^pPgL*mXlYM#&=UxHwzhbD(1U)9$1TV0GK^n0{1orAXaqhQ zf%hMQNxT<{hVhyt8db6saKqA)WasoPM0ALQwB=;6@K40@ zh$OtIh?toncoLW^=tF%zZ735=rh<(E^$>p|59A% z5?ANXU8OiypIYCg_%))tEWSa|XT6y`T`+p1iKB-xH`|%1m9ka@{`;f$!ulMIx(7&((zD~wj8VgA`DSXm4&nXY;TdpoB z-+Ddzd!L#={M~RA_*!ILc>k$Twv#LPc?`I>%=rJB{5Y>!wytLsPN&skItQG_pV9|J zF?knaPWmsbI|Yl^r9Mjqemlm^D>jH>n}0VxJSa~4KI4+(>=Bf&Ad+V<@V`j^W%mC_ z+RT{Q!9jlnX|dg{Jw|88zFuVX3W+ zG!ZjnQU50!Z*C~BWDLfWaU+~ghYuOCq?tY>2Gik@m=Vp6j2wbVkz_#AEK$vv>1@O_ z2D8bCKQcOsT;M*lv)M4>DN=>lP%ra-W;`N|i|Jz! 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