我是C新手。我在GWBASIC中经验丰富。在努力学习,我试图写一个程序,将个别字符转换成字符串到数值为这样:将字符串数组字符转换为数字
1 2 3 4 5 6 7 8 9
a b c d e f g h i
j k l m n o p q r
s t u v w x y z
例如,对于字符串用户输入可以是“狗”, 表示程序然后将字符串B中的[d] [o] [g]存储为[4] [6] [7]。 下面的代码适用于字符串w /最多四个字符,但必须有更多这样做的有效方法。
int main()
{
char a[0];
char b[0];
scanf("%s",a);
if (a[0] == 'a' || a[0] == 'j' || a[0] == 's') b[0] = '1';
if (a[0] == 'b' || a[0] == 'k' || a[0] == 't') b[0] = '2';
if (a[0] == 'c' || a[0] == 'l' || a[0] == 'u') b[0] = '3';
if (a[0] == 'd' || a[0] == 'm' || a[0] == 'v') b[0] = '4';
if (a[0] == 'e' || a[0] == 'n' || a[0] == 'w') b[0] = '5';
if (a[0] == 'f' || a[0] == 'o' || a[0] == 'x') b[0] = '6';
if (a[0] == 'g' || a[0] == 'p' || a[0] == 'y') b[0] = '7';
if (a[0] == 'h' || a[0] == 'q' || a[0] == 'z') b[0] = '8';
if (a[0] == 'i' || a[0] == 'r') b[0] = '9';
if (a[1] == 'a' || a[1] == 'j' || a[1] == 's') b[1] = '1';
if (a[1] == 'b' || a[1] == 'k' || a[1] == 't') b[1] = '2';
if (a[1] == 'c' || a[1] == 'l' || a[1] == 'u') b[1] = '3';
if (a[1] == 'd' || a[1] == 'm' || a[1] == 'v') b[1] = '4';
if (a[1] == 'e' || a[1] == 'n' || a[1] == 'w') b[1] = '5';
if (a[1] == 'f' || a[1] == 'o' || a[1] == 'x') b[1] = '6';
if (a[1] == 'g' || a[1] == 'p' || a[1] == 'y') b[1] = '7';
if (a[1] == 'h' || a[1] == 'q' || a[1] == 'z') b[1] = '8';
if (a[1] == 'i' || a[1] == 'r') b[1] = '9';
if (a[2] == 'a' || a[2] == 'j' || a[2] == 's') b[2] = '1';
if (a[2] == 'b' || a[2] == 'k' || a[2] == 't') b[2] = '2';
if (a[2] == 'c' || a[2] == 'l' || a[2] == 'u') b[2] = '3';
if (a[2] == 'd' || a[2] == 'm' || a[2] == 'v') b[2] = '4';
if (a[2] == 'e' || a[2] == 'n' || a[2] == 'w') b[2] = '5';
if (a[2] == 'f' || a[2] == 'o' || a[2] == 'x') b[2] = '6';
if (a[2] == 'g' || a[2] == 'p' || a[2] == 'y') b[2] = '7';
if (a[2] == 'h' || a[2] == 'q' || a[2] == 'z') b[2] = '8';
if (a[2] == 'i' || a[2] == 'r') b[2] = '9';
if (a[3] == 'a' || a[3] == 'j' || a[3] == 's') b[3] = '1';
if (a[3] == 'b' || a[3] == 'k' || a[3] == 't') b[3] = '2';
if (a[3] == 'c' || a[3] == 'l' || a[3] == 'u') b[3] = '3';
if (a[3] == 'd' || a[3] == 'm' || a[3] == 'v') b[3] = '4';
if (a[3] == 'e' || a[3] == 'n' || a[3] == 'w') b[3] = '5';
if (a[3] == 'f' || a[3] == 'o' || a[3] == 'x') b[3] = '6';
if (a[3] == 'g' || a[3] == 'p' || a[3] == 'y') b[3] = '7';
if (a[3] == 'h' || a[3] == 'q' || a[3] == 'z') b[3] = '8';
if (a[3] == 'i' || a[3] == 'r') b[3] = '9';
printf("%s\n",b);
return 0;
}
'“d” - “a''等于'3'。 –
请注意,在C中'='运算符是赋值,为了检查相等性,使用==运算符。你可以这样if(strA [0] =='a'|| strA [0] =='j'|| strA [0] =='s')strB [0] = 1; ...以及其他情况下的其他情况,为每个字符检查一次使用for或while循环,而不是使用递增值。 – akoso
@rankep:我认为salicemspiritus希望'strB [0] ='1''而不是'strB [0] = 1'。 – ruakh