鍵值對（”key = valude”）字符串，在開發(fā)中經(jīng)常使用；

要求1：請自己定義一個接口，實現(xiàn)根據(jù)key獲取valude；40分

要求2：編寫測試用例。30分

????????????? 要求3：鍵值對中間可能有n多空格，請去除空格30分

注意：鍵值對字符串格式可能如下：

?“key1 = valude1”

“key2 =?????? valude2?????????

“key3? = valude3”

“key4??????? = valude4”

“key5?? =?? “

“key6?? =“

“key7?? =?? “

?

int getKeyByValude(char *keyvaluebuf,? char *keybuf,? char *valuebuf);

/*** keyandvalue.c ***/ #include<stdio.h> #include<string.h>int trimSpace(char *in,char *out) {int iRet = -1;int i = 0;int j = 0;int k = 0;char *tempIn = in;if(in == NULL || out == NULL){printf("NULL is error\n");return iRet;}i = 0;j = strlen(tempIn) - 1;while(isspace(tempIn[i]) && tempIn[i] != '\0'){i++;}while(isspace(tempIn[j]) && tempIn[j] != '\0'){j--;}while(i <= j){out[k++] = tempIn[i++];}out[k] = '\0';iRet = 0;return iRet; }int getValuebyKey(const char *keyandvalue, const char *key, char *value) {int iRet = -1;char *str = keyandvalue;if(keyandvalue == NULL || key == NULL || value == NULL){printf("Point is NULL \n");return iRet;}str = strstr(keyandvalue,key);if(str == NULL){printf("strstr err \n");return iRet;}str = str + strlen(key);str = strstr(str,"=");if(NULL == str){printf("strstr(str,\"=\") error\n");return iRet;}str = str + strlen("=");iRet = trimSpace(str,value);if(iRet != 0){printf("trimSpace error\n");return iRet;}return iRet; }int main() {int iRet = 0;char *key = "key";char *keyvalue = "key = value ";char value[256];int len = 0;iRet = getValuebyKey(keyvalue,key,value);printf("value = %s\n",value);return 0;}

?

轉(zhuǎn)載于:https://www.cnblogs.com/wanghao-boke/p/11604862.html

創(chuàng)作挑戰(zhàn)賽新人創(chuàng)作獎勵來咯，堅持創(chuàng)作打卡瓜分現(xiàn)金大獎

總結(jié)

以上是生活随笔為你收集整理的字符串的规范使用（二）的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。