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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  c7 @" ~7 `4 X) p1. string转const char*

string s ="abc";
consTChar* c_s = s.c_str();
2. const char*转string
' i# k! m+ ^9 U/ h# W   直接赋值即可

constchar* c_s ="abc";
+ e% F* T0 q  R( ~. B% J* Jstring s(c_s);
$ O- l# e, Z- Q! a9 o 3. string转char*
string s ="abc";
" l) M" q: f( k, m2 ]char* c;
constint len = s.length();
c =newchar[len+1];
* |$ l/ l4 |& J& |8 l: V0 O4 v4 }strcpy(c,s.c_str());
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4. char*转string

6 B$ Y, t3 Z3 v$ b' C* H" Pchar* c ="abc";
string s(c);
5. const char*转char*
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4 |  }8 h4 w* p# hconstchar* cpc ="abc";
char* pc =newchar[100];//足够长
strcpy(pc,c
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