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Comparing two strings in C? [duplicate] (8 answers)

Closed 3 years ago.

我想测试和看,“果园”类变量能否与“che”这样的固定体进行比较,以便进行比较:

#include <stdio.h>

int main()
{
    char favoriteDairyProduct[30];

    scanf("%s",favoriteDairyProduct);

    if(favoriteDairyProduct == "cheese")
    {
        printf("You like cheese too!");
    }
    else
    {
        printf("I like cheese more.");
    }

    return 0;
}

(What I actually want to do is much longer than this but this is the main part I m stuck on.) So how would one compare two strings in C?

Answer 1

查阅<代码>strcmp,或strncmp,string.h。

由于体力只是阵列,你需要比较每个特性,因此,这一职能对你来说是:

if (strcmp(favoriteDairyProduct, "cheese") == 0)
{
    printf("You like cheese too!");
}
else
{
    printf("I like cheese more.");
}

Further reading: strcmp at cplusplus.com

Answer 2

if(strcmp(aString, bString) == 0){
    //strings are the same
}

go

Answer 3

if(!strcmp(favoriteDairyProduct, "cheese"))
{
    printf("You like cheese too!");
}
else
{
    printf("I like cheese more.");
}

Answer 4

查阅strcmp 和 strncmp 。

Answer 5

您可以比较使用<条码>=的操作者。你们必须使用方位比较功能。查阅 Strings (c-faq)。

标准图书馆的<代码>strcmp功能比较了两个阵列,如果是相同的,则回归率为0,如果第一个星体是“小于”第二个座标的,则是负数,如果第一个星体是“大面积”的,则则是正数。

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