classCat{private:boolIsNum(charCh){return(Ch>='0'&&Ch<='9');}boolIsBreak(charCh){staticcha...
if(str[i]>='0'||str[i]<='10'){ a=a*10+str[i];} } //a就是过滤后的数字 } //未...
int i,j=1,n;char a[100];double sum=0,t=0.1;printf("请输入字符数字:\n");scanf ("%s"...