璦褰掓浼狅紝宸茬粡濂藉儚鏄湪璇匯奀涓撳緙栫▼銆嬫椂錛岃鍒拌繃璇存暟緇勫悕鏄釜寰?#8220;濂囩壒”鐨勬寚閽堬紝鏌愮鎰忎箟涓婅錛屽畠涓嶈兘縐頒負鎸囬拡錛屽洜涓哄畠鍙兘浣滀負鍙沖煎嚭鐜幫紝褰撴椂涔熸瘮杈冭糠鎯戯紝寰堝伓鐒訛紝浠婂ぉ鍦ㄨ銆奤nix鐜楂樼駭緙栫▼銆嬫椂錛屽啓涓涓墦鍗板嚭榪涚▼鐨勭幆澧冨彉閲忚〃鐨勫皬鐜╂剰錛岃鐢ㄥ埌environ榪欎釜鍏ㄥ眬鎸囬拡錛屽畠?yōu)鏄釜鎸囬拡鏁熬l勭殑鍚嶅瓧錛岃鏁扮粍姣忎釜鍏冪礌涓轟竴涓瓧絎︿覆錛屼互'\0'緇撳熬錛屾暟緇勬渶鍚庝竴涓厓绱犱負NULL錛屽紑濮嬪厛鎶婅鏁扮粍鐨勯鍦板潃鎷瘋礉緇欎簡鍙︿竴涓寚閽堬紝char **pp = environ; 鐒跺悗涓轟簡鍋忕Щ鍒頒笅涓涓瓧絎︿覆錛屾垜绔熺劧浣庣駭鐨勫啓浜?+environ錛岀紪璇戞姤閿欒: ISO C++ forbid to use a non-refernece type as a lvalue! 欏挎椂鎯沖埌environ鏄竴涓暟緇勫悕錛屼笉鑳戒綔涓轟竴涓乏鍊間嬌鐢ㄣ備簬鏄張鎯沖埌浜嗗鏋渋nt *ia1[]; int *ia2[]錛屽綋鍐檌a1 = ia2鏃朵細鍑虹幇鍚屾牱鐨勯敊錛岃繖灝辨槸鍥犱負ia1 ia2閮戒負鍙沖鹼紝浠諱綍涓涓笉鑳藉嚭鐜板湪=鍙風(fēng)殑宸﹁竟鍏呭綋宸﹀鹼紒
浠ｇ爜1錛?br>char *sz[] = { "aaa", "bbb", "ccc", 0 };
int i = 0;
while (sz[i] != 0)
{
char *p = sz[i];
printf("%s\n", p);
++i;
}
浠ｇ爜2: Unix緋葷粺涓婃墦鍗頒竴涓繘紼嬬殑鐜鍙橀噺琛?br>char **pp = environ;
while (*pp != 0) {
printf("%s\n", *pp);
++pp;
}
灝戠殑鍙滐紝1涓皬鏃舵氮璐逛簡....
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