imds中标准材料编号:if(strcmp(ch,"yingcang")==0)printf("隐藏要素\n")为什么要==0

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if(strcmp(ch,"yingcang")==0)printf("隐藏要素\n")为什么要==0
=0时候不是值为假么，这句话只有在=0时候才可以输出，解释下为什么，谢谢

就是如果在ch里面没有找到yingcang字符串,也就是找到字符串数目是0则打印输出/

Compare strings.

int strcmp( const char *string1, const char *string2 );

int wcscmp( const wchar_t *string1, const wchar_t *string2 );

int _mbscmp(const unsigned char *string1, const unsigned char *string2 );

Return Value

The return value for each of these functions indicates the lexicographic relation of string1 to string2.

Value Relationship of string1 to string2
< 0 string1 less than string2
0 string1 identical to string2
> 0 string1 greater than string2

if(strcmp(ch,"yingcang")==0)printf("隐藏要素\n")为什么要==0 语句if(x!=y)scanf("%d",&x)else scanf("%d",&y);if这种语法为什么不对？谁帮忙讲下">"和"strcmp"的在使用中区别 main() {char ch ='A'; while (ch<='Z') {printf ("%c", ch); ch++;} printf("\n");} 结果是？ main() {char ch ='Z'; while (ch>='A') {printf ("%c", ch); ch--;} printf("\n");} 结果是？急！有关 if session="" then end if main() {char *s1 = "abcdeg"; char *s2="ab"; s1++; s2++; printf ("%d\n",strcmp(s1,s2));} main() {char *s1 = "abcdeg"; char *s2="a"; s1++; s2++; printf ("%d\n",strcmp(s1,s2));} "if only"的具体使用？ excel "if函数"的编写