C++ char*，const char*，string的相互转换

mildcat

C++ char*，const char*，string的相互转换
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" Y1 T( V7 I/ r5 A1. string转const char*

string s ="abc";
consTChar* c_s = s.c_str();
2. const char*转string
   直接赋值即可
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* I' F6 s$ Q! I- [. Z5 I9 n+ Kconstchar* c_s ="abc";
string s(c_s);
$ \3 \2 W: h; N 3. string转char*
string s ="abc";
char* c;
constint len = s.length();
: P+ \: k- Y3 z' v; i% a9 nc =newchar[len+1];
/ e& S. S0 [; z, \& o$ l& Astrcpy(c,s.c_str());
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) ~* R2 X  ?* Q, H6 ?$ d 4. char*转string

; X* K1 g1 [8 g" ]1 |1 M& Q/ {. qchar* c ="abc";
string s(c);
2 }4 E  U& `. V2 s) L9 q 5. const char*转char*

9 L/ V. k* T- g4 q4 J' Dconstchar* cpc ="abc";
! A4 ?; Q4 q( ~3 D/ achar* pc =newchar[100];//足够长
strcpy(pc,c
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