1014 Compilation Principle Second job (modified version)

#include <stdio.h> #include <string.h> #define MAX 100int n=0,i=0;char *keyshuru[6]={"Begin", "if", "then", " While "," Do "," End "};    void KEYword (char Shuru[max]) {int k=0,key=0,q=1;    Char Token[max]; while (shuru[i]!= ' # ') {while ((shuru[i]>= ' a ' &&shuru[i]<= ' z ') | | (shuru[i]>= ' A ' &&shuru[i]<= ' Z ') | |    (shuru[i]>= ' 0 ' && shuru[i]<= ' 9 ')) {if (shuru[i]>= ' a ' &&shuru[i]<= ' z ') | | (shuru[i]>= ' A ' &&shuru[i]<= ' Z ') | |        (shuru[i]>= ' 0 ' && shuru[i]<= ' 9 '))            {Token[n]=shuru[i];            n++;            token[n]= ' + '; i++;        if (shuru[i]>= ' 0 ' && shuru[i]<= ' 9 ') q++;        } for (k=0;k<6;k++) {key=0;            if (strcmp (Keyshuru[k],token) ==0) {printf ("%s%d\n", keyshuru[k],k+1);            Key=1;        Break }}}if ((shuru[i-q]>= ' a ' &&shuru[i-q]<= ' z ') | | (shuru[i-q]>= ' A ' &&shuru[i-q]<= ' Z ')) {if (key==0) {printf ("%s 10\n", token);}}    Key=1;    i=i+1;    n=0;    }}void character (char Shuru[max]) {int p=0,sign=0;            for (p=0;p<max;p++) {switch (Shuru[p]) {case ' + ': printf ("+ 13\n");        Break            Case '-': printf ("-14\n");        Break            Case ' * ': printf ("* 15\n");        Break            Case '/': printf ("/16\n");        Break                Case ': ': ' if (shuru[p+1]== ' = ') {printf (": = 18\n");            p++;            } else printf (": 17\n");        Break                Case ' < ': if (shuru[p+1]== ' = ') {printf ("<= 21\n");                Sign=1;            p++;                } else if (shuru[p+1]== ' > ') {printf ("<> 22\n");                Sign=1;            p++; } else IF (sign==0) printf ("< 20\n");        Break                Case ' > ': if (shuru[p+1]== ' = ') {printf (">= 24\n");            p++;            } else printf ("> 23\n");        Break            Case ' = ': printf ("= 25\n");        Break    Case '; ': printf (";            26\n ");        Break            Case ' (': printf ("(27\n)";        Break            Case ') ': printf (") 28\n");        Break            Case ' # ': printf ("# 29\n");        Break    }}} void number (char Shuru[max]) {int p=0,j=0,t=0,key=0,q=1;    Char Num[max];    while (shuru[p]!= ' # ') {key=0;j=0;        while (shuru[p]>= ' 0 ' && shuru[p]<= ' 9 ') {num[j]=shuru[p];        p++;        j + +;    key=1;q++; }if ((shuru[p-q]>= ' a ' &&shuru[p-q]<= ' z ') | |    (shuru[p-q]>= ' A ' &&shuru[p-q]<= ' Z ')) {Key=0;    Q=1;        } if (Key==1) {for (t=0;t<j;t++) {printf ("%c", num[t]);        } printf ("11\n");    j=0;    } p++;    }} main () {char A;     Char Shuru[max];     int p=0,j=0,m=0;    printf ("Please enter the source program, #键为结束标志:");        do{scanf ("%c", &a);        Shuru[p]=a;    p++; }while (a!= ' # ');    KEYword (Shuru);    Character (Shuru); Number (Shuru);}

　　

1014 Compilation Principle Second job (modified version)