C++ char*，const char*，string的相互转换

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C++ char*，const char*，string的相互转换
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) l! d6 V% X8 l, P/ A* `5 g1. string转const char*
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string s ="abc";
consTChar* c_s = s.c_str();
$ `4 _% A) @$ @- V0 n6 {# w' V$ G0 C3 r2. const char*转string
, B1 O4 N, `  t( M   直接赋值即可
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9 C. U$ y" Q" ~, v, a, C1 r) Pconstchar* c_s ="abc";
+ D0 w; f9 k/ c+ astring s(c_s);
' L& E6 o' |+ ^  O 3. string转char*
string s ="abc";
char* c;
& v; W, J% p4 A* C# K1 a/ R# Zconstint len = s.length();
, ~/ h# G# p1 m+ b& ic =newchar[len+1];
strcpy(c,s.c_str());
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5 s) v  K% o! y3 a) S 4. char*转string

char* c ="abc";
# j/ L# E' b* {1 Y' estring s(c);
5. const char*转char*

4 F  o. w9 q% S2 S$ fconstchar* cpc ="abc";
char* pc =newchar[100];//足够长
strcpy(pc,c
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