第一篇：輸入一行字符,分別統(tǒng)計(jì)出其中英文、空格、數(shù)字和其他字符的個(gè)數(shù)

#include

int main()

{char ch;int A=0,B=0,C=0,D=0;

printf(“A(字符)B(空格)C(數(shù)字)D(其它):n”);

printf(“請(qǐng)輸入一串字符:”);

while((ch=getchar())!='n')

{if('a'<=ch && ch<='z' || 'A'<=ch && ch<='Z')A=A+1;

else if('0'<=ch&&ch<='9')C=C+1;

else if(ch==' ')B=B+1;

else D=D+1;

}

printf(“英文字母、空格、數(shù)字、其他字符的個(gè)數(shù)分別為：%d,%d,%d,%dn”,A,B,C,D);return 0;

}

第二篇：C#中鍵盤(pán)輸入一串字符,輸出該字符包含字母、數(shù)字個(gè)數(shù)

using System;

using System.Collections.Generic;using System.Linq;

using System.Text;

namespace study

{

class Program

{

static void Main(string[] args){

{

{

numberSum=}

{

smallSum=}

{

bigSum=}

{

elseSum=}

}

}

}

}

Console.WriteLine(“請(qǐng)輸入字符：”);string a = Console.ReadLine();int numberSum=0,smallSum=0,bigSum=0,elseSum=0;for(int i = 0;i < a.Length;i++)if(a[i] >= 48 && a[i] <= 57)numberSum+1;else if(a[i] >= 97 && a[i] <= 122)smallSum+1;else if(a[i] >= 65 && a[i] <= 90)bigSum+1;else elseSum+1;Console.WriteLine(“數(shù)字有{0}個(gè)”, numberSum);Console.WriteLine(“小寫(xiě)字母有{0}個(gè)”, smallSum);Console.WriteLine(“大寫(xiě)字母有{0}個(gè)”, bigSum);Console.WriteLine(“其他有{0}個(gè)”, elseSum);

第三篇：c語(yǔ)言編程 有一篇文章共有3行文字每行80個(gè)字符要求分別統(tǒng)計(jì)出其中英文字母數(shù)字空

C語(yǔ)言編程 有一篇文章，共有3行文字，每行80個(gè)字符。要求分別統(tǒng)計(jì)出其中英文字母，數(shù)字，空...2種做法，1種用單字符來(lái)讀取輸入，1種用字符串來(lái)讀取輸入。1.#include int main(){ int i, upper, lower, digit, space, other;char c;upper = lower = digit = space = other = 0;for(i = 0;i < 3;i++)getchar())!= 'n')

while((c =

if('A' <= c && c <= 'Z')

else if('a' <= c &&

else if('0' <= c

else if(c == upper++;

c <= 'z')lower++;

&& c <= '9')' ')space++;

digit++;

else other++;printf(“upper:%dnlower:%dndigit:%dnspace:%dnother:%dn”, upper, lower, digit, space, other);return 0;} 2.#include int main(){ int i, j, upper, lower, digit, space, other;char str[3][81];upper = lower = digit = space = other = 0;for(i = 0;i < 3;i++){

for(j = 0;str[i][j];j++)

gets(str[i]);

if('A' <= str[i][j]

upper++;&& str[i][j] <= 'Z')

else if('a' <= str[i][j] && str[i][j] <= 'z')lower++;

else if('0' <= str[i][j] &&

digit++;

else if(str[i][j] == ' ')str[i][j] <= '9')

space++;

else

other++;}printf(“upper:%dnlower:%dndigit:%dnspace:%dnother:%dn”, upper, lower, digit, space, other);return 0;}提問(wèn)人的追問(wèn)

2009-05-02 11:48

“for(j = 0;str[i][j];j++)”這一句沒(méi)有限制條件吧！是不是應(yīng)該寫(xiě)成“for(j=0;str[i][j]!='