Created
March 26, 2013 02:49
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test c string '\0'
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/* | |
* ===================================================================================== | |
* | |
* Filename: test.c | |
* | |
* Description: | |
* | |
* Version: 1.0 | |
* Created: 03/26/2013 10:39:03 AM | |
* Revision: none | |
* Compiler: gcc | |
* | |
* Author: freetstar (http://www.freetstar.com), [email protected] | |
* Company: | |
* | |
* ===================================================================================== | |
*/ | |
#include <string.h> | |
int main(int argc, const char *argv[]) | |
{ | |
char str1[6]="123456"; | |
char str2[2]={'2','1'}; | |
char str3[7]="123456"; | |
char str4[3]={'2','1','\0'}; | |
printf("str1 %s\n",str1); | |
printf("str2 %s\n",str2); | |
printf("str3 %s\n",str3); | |
printf("str4 %s\n",str4); | |
return 0; | |
} | |
//output | |
str1 123456 [乱码][乱码] | |
str2 21123456 [乱码][乱码] | |
str3 123456 | |
str4 21 | |
//explanation | |
如果c语言里的一个字符串数组末尾没有'\0',这个可能是由于数组长度限制而导致的,会导致输出乱码,或者没有错误,或者诡异的段错误 | |
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