字符串的合并

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#ifndef _STRING_H_#endif  _STRING_H_//#pragma once  //此句与头两句效果相同#include<iostream>using namespace std;#define MAX_STRING_SIZE 10  //合并后存放字符串的空间大小,可以比第一的字符串长度小typedef char SString[MAX_STRING_SIZE+1];#define MAX_STRING_SIZE1 6  //单个字符的长度typedef char SString1[MAX_STRING_SIZE1+1];int Length(SString s){return strlen(s);}bool StringConcat(SString T, SString1 s1, SString1 s2)//字符串链接{int t_length = MAX_STRING_SIZE;int s1_length = Length(s1);int s2_length = Length(s2);if(t_length >= s1_length+s2_length){for(int i=0; i<s1_length; ++i){T[i] = s1[i];}for(int j=0; j<s2_length; ++j){T[i+j] = s2[j];}T[i+j] = '\0';return true;}else if(t_length>s1_length && t_length<s1_length+s2_length){for(int i=0; i<s1_length; ++i){T[i] = s1[i];}for(int j=0; j<t_length-s1_length; ++j){T[i+j] = s2[j];}T[i+j] = '\0';return false;} else if(t_length < s1_length)  /////{for(int i=0; i<t_length; ++i){T[i] = s1[i];}T[i] = '\0';return false;} return true;}void PrintString(char T[]){cout<<T<<endl;}

#include"string.h"void main(){SString T;SString1 s1 = "hello ";SString1 s2 = "world!";StringConcat(T,s1,s2);PrintString(T);}

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