字符串的規范使用

有一個字符串”1a2b3d4z”,；

????????????? 要求寫一個函數實現如下功能，

功能1：把偶數位字符挑選出來，組成一個字符串1。valude；20分

功能2：把奇數位字符挑選出來，組成一個字符串2，valude 20

????????????? 功能3：把字符串1和字符串2，通過函數參數，傳送給main，并打印。

????????????? 功能4：主函數能測試通過。

int getStr1Str2(char *souce, char *buf1, char *buf2);

/***
getStr1Str2
***/
#include<stdio.h>
#include<string.h>int getStr1Str2(const char *source ,char *odd, char *even)
{int iRet = -1;int i = 0;int j = 0;char *tmpStr = source;if(source == NULL || odd == NULL || even == NULL){printf("the point is NULL \n");return iRet;}while(tmpStr[i] != '\0'){odd[j] = tmpStr[i++];even[j++] = tmpStr[i++];}odd[j] = '\0';even[j] = '\0';iRet = 0;return iRet;
}int main()
{int iRet = 0;char *p = "1n2n3o4j3u1n";   //傳入參數可以指針char odd[256] = {0};        //傳入傳出參數需要用字符串數組的形式初始化。char even[256] = {0};iRet = getStr1Str2(p,odd,even);printf("odd = %s,even = %s\n",odd,even);return 0;
}

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