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ͼ4.1 Proj4_1¹¤³Ì×é³É

//ÎļþÃû:algo4-1.cpp #include #define MaxSize 100 typedef struct

{ char data[MaxSize]; } SqString;

void StrAssign(SqString &s,char cstr[]) //sΪÒýÓÃÐͲÎÊý { int i;

for (i=0;cstr[i]!='\\0';i++)

s.data[i]=cstr[i]; s.length=i;

//¶¨Òå¿ÉÈÝÄÉMaxSize¸ö×Ö·ûµÄ¿Õ¼ä //±ê¼Çµ±Ç°Êµ¼Ê´®³¤

int length;

//×î¶àµÄ×Ö·û¸öÊý

}

void StrCopy(SqString &s,SqString t) //sΪÒýÓÃÐͲÎÊý { int i; }

bool StrEqual(SqString s,SqString t) { bool same=true; }

int StrLength(SqString s) { }

SqString Concat(SqString s,SqString t) { SqString str; } int i;

str.length=s.length+t.length;

for (i=0;i

str.data[i]=s.data[i];

str.data[s.length+i]=t.data[i];

for (i=0;i

if (s.length!=t.length)

same=false;

for (i=0;i

if (s.data[i]!=t.data[i]) { same=false; }

break;

//ÓÐÒ»¸ö¶ÔÓ¦×Ö·û²»Ïàͬʱ·µ»Ø0

else

//³¤¶È²»ÏàµÈʱ·µ»Ø0

for (i=0;i

s.data[i]=t.data[i]; s.length=t.length;

return same;

SqString SubStr(SqString s,int i,int j) { SqString str; }

SqString InsStr(SqString s1,int i,SqString s2) { int j; }

SqString DelStr(SqString s,int i,int j) { int k;

SqString str; str.length=0;

if (i<=0 || i>s.length || i+j>s.length+1) //²ÎÊý²»Õýȷʱ·µ»Ø¿Õ´®

return str;

//½«s.data[0..i-2]¸´ÖƵ½str

str.data[k]=s.data[k]; for (k=0;k

if (i<=0 || i>s1.length+1) //²ÎÊý²»Õýȷʱ·µ»Ø¿Õ´®

return str;

//½«s1.data[0..i-2]¸´ÖƵ½str

//½«s2.data[0..s2.length-1]¸´ÖƵ½str //½«s1.data[i-1..s1.length-1]¸´ÖƵ½str

str.data[j]=s1.data[j]; str.data[i+j-1]=s2.data[j]; str.data[s2.length+j]=s1.data[j]; for (j=0;j

if (i<=0 || i>s.length || j<0 || i+j-1>s.length)

return str;

//²ÎÊý²»Õýȷʱ·µ»Ø¿Õ´® //½«s.data[i..i+j]¸´ÖƵ½str

for (k=i-1;k

str.data[k-i+1]=s.data[k];

for (j=i-1;j

str.length=s1.length+s2.length; return str;

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