字符串?dāng)?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
}