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字符串數(shù)組中提取數(shù)字 C語言編程:從字符串中提取數(shù)字?

C語言編程:從字符串中提取數(shù)字?代碼示例:#include<stdio。H>#包含<math。H>#包括<stdlib。H>int main(){intz=0intt,Iint

C語言編程:從字符串中提取數(shù)字?

代碼示例:

#include<stdio。H>

#包含<math。H>

#包括<stdlib。H>

int main()

{

intz=0

intt,I

int*P

INTM=0

ints=0

Chara[10]//輸入字符串到[6

]printf(“please enter a stringn”)中

scanf(%s”,a) //輸入字符串

for(I=0I<10i)//計算[6]a[6]中的數(shù)字個數(shù)來計算[6]a[number

]{

]{

]{

]{

!{[if[if[I]&[amp&[I]&[amp&[amp[I]&&&[I]&&[I]&if(M=&[amp]&&;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp{

z=(*(P,t))*pow(10,M-(t)1))//合成一個新整數(shù)

}

printf(“新合成整數(shù):Dn”,z)

free(P)

}

代碼示例:

#include<stdio。H>

#包含<string。H>

#包括“ctype。H“

int main()

]{

char STR[100]=”“,s[100]=”“

int i=0,j=0

獲取uus(STR,sizeof(STR))

while(STR[i]!=“0”)

{

if(isdigit(str[i])){

s[j]=str[i

]j

}

i

}

puts(s)

return 0

}