正确代码：
#include "stdio.h"
#include "Windows.h"
#include <locale.h>
int wmain(int argc, wchar_t* argv[])
{
setlocale(LC_ALL, "chs");
wprintf(L"%s\n", L"中文字符");
}其关键代码为：
setlocale(LC_ALL, "chs");
配置地域化信息函数
为什么一定要调用setlocale呢？
因为在C/C++语言标准中定义了其运行时的字符集环境为"C"，也就是ASCII字符集的一个子集，那么mbstowcs在工作时会将cstr中所包含的字符串看作是ASCII编码的字符，而不认为是一个包含有chs编码的字符串，所以他会将每一个中文拆成2个ASCII编码进行转换，这样得到的结果就是会形成4个wchar_t的字符组成的串，那么如何才能够让mbstowcs正常工作呢？在调用mbstowcs进行转换之间必须明确的告诉mbstowcs目前cstr串中包含的是chs编码的字符串，通过setlocale( LC_ALL, "chs" )函数调用来完成，需要注意的是这个函数会改变整个应用程序的字符集编码方式，必须要通过重新调用setlocale( LC_ALL, "C" )函数来还原，这样就可以保证mbstowcs在转换时将cstr中的串看作是中文串，并且转换成为2个wchar_t字符，而不是4个。
本地化设置需要具备三个条件：
a.语言代码(Language Code)
b.国家代码(Country Code)
c.编码(Encoding)
本地名字可以用下面这些部分来构造：
语言代码_国家代码.编码 比如（zh_CN.UTF-8, en_US等）
locale的别名表见/usr/lib/X11/locale/locale.alias(以Debian GNU/Linux为例)
setlocale语言字符串参考
Primary
language
Sublanguage
Language string
| Chinese |
Chinese |
"chinese" |
| Chinese |
Chinese (simplified) |
"chinese-simplified" or "chs" |
| Chinese |
Chinese (traditional) |
"chinese-traditional" or "cht" |
| Czech |
Czech |
"csy" or "czech" |
| Danish |
Danish |
"dan" or "danish" |
| Dutch |
Dutch (default) |
"dutch" or "nld" |
| Dutch |
Dutch (Belgian) |
"belgian", "dutch-belgian", or "nlb" |
| English |
English (default) |
"english" |
| English |
English (Australian) |
"australian", "ena", or "english-aus" |
| English |
English (Canadian) |
"canadian", "enc", or "english-can" |
| English |
English (New Zealand) |
"english-nz" or "enz" |
| English |
English (United Kingdom) |
"eng", "english-uk", or "uk" |
| English |
English (United States) |
"american", "american english", "american-english", "english-american", "english-us", "english-usa", "enu", "us", or "usa" |
| Finnish |
Finnish |
"fin" or "finnish" |
| French |
French (default) |
"fra" or "french" |
| French |
French (Belgian) |
"frb" or "french-belgian" |
| French |
French (Canadian) |
"frc" or "french-canadian" |
| French |
French (Swiss) |
"french-swiss" or "frs" |
| German |
German (default) |
"deu" or "german" |
| German |
German (Austrian) |
"dea" or "german-austrian" |
| German |
German (Swiss) |
"des", "german-swiss", or "swiss" |
| Greek |
Greek |
"ell" or "greek" |
| Hungarian |
Hungarian |
"hun" or "hungarian" |
| Icelandic |
Icelandic |
"icelandic" or "isl" |
| Italian |
Italian (default) |
"ita" or "italian" |
| Italian |
Italian (Swiss) |
"italian-swiss" or "its" |
| Japanese |
Japanese |
"japanese" or "jpn" |
| Korean |
Korean |
"kor" or "korean" |
| Norwegian |
Norwegian (default) |
"norwegian" |
| Norwegian |
Norwegian (Bokmal) |
"nor" or "norwegian-bokmal" |
| Norwegian |
Norwegian (Nynorsk) |
"non" or "norwegian-nynorsk" |
| Polish |
Polish |
"plk" or "polish" |
| Portuguese |
Portuguese (default) |
"portuguese" or "ptg" |
| Portuguese |
Portuguese (Brazilian) |
"portuguese-brazil" or "ptb" |
| Russian |
Russian (default) |
"rus" or "russian" |
| Slovak |
Slovak |
"sky" or "slovak" |
| Spanish |
Spanish (default) |
"esp" or "spanish" |
| Spanish |
Spanish (Mexican) |
"esm" or "spanish-mexican" |
| Spanish |
Spanish (Modern) |
"esn" or "spanish-modern" |
| Swedish |
Swedish |
"sve" or "swedish" |
| Turkish |
Turkish |
"trk" or "turkish" |
setlocale国家字符串参考
Country/Region
Country/Region string
| Australia |
"aus" or "australia" |
| Austria |
"aut" or "austria" |
| Belgium |
"bel" or "belgium" |
| Brazil |
"bra" or "brazil" |
| Canada |
"can" or "canada" |
| China |
"china", "chn", "pr china", or "pr-china" |
| Czech Republic |
"cze" or "czech" |
| Denmark |
"dnk" or "denmark" |
| Finland |
"fin" or "finland" |
| France |
"fra" or "france" |
| Germany |
"deu" or "germany" |
| Greece |
"grc" or "greece" |
| Hong Kong SAR |
"hkg", "hong kong", or "hong-kong" |
| Hungary |
"hun" or "hungary" |
| Iceland |
"iceland" or "isl" |
| Ireland |
"irl" or "ireland" |
| Italy |
"ita" or "italy" |
| Japan |
"jpn" or "japan" |
| Korea |
"kor" or "korea" |
| Mexico |
"mex" or "mexico" |
| The Netherlands |
"nld", "holland", or "netherlands" |
| New Zealand |
"nzl", "new zealand", "new-zealand", or "nz" |
| Norway |
"nor" or "norway" |
| Poland |
"pol" or "poland" |
| Portugal |
"prt" or "portugal" |
| Russia |
"rus" or "russia" |
| Singapore |
"sgp" or "singapore" |
| Slovakia |
"svk" or "slovak" |
| Spain |
"esp" or "spain" |
| Sweden |
"swe" or "sweden" |
| Switzerland |
"che" or "switzerland" |
| Taiwan |
"twn" or "taiwan" |
| Turkey |
"tur" or "turkey" |
| United Kingdom |
"gbr", "britain", "england", "great britain", "uk", "united kingdom", or "united-kingdom" |
| United States |
"usa", "america", "united states", "united-states", or "us" |
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