{"id":38743,"date":"2025-05-21T10:34:40","date_gmt":"2025-05-21T02:34:40","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/38743.html"},"modified":"2025-05-21T10:34:40","modified_gmt":"2025-05-21T02:34:40","slug":"%e8%93%9d%e6%a1%a5%e6%9d%af-%e4%b8%8d%e5%ae%8c%e6%95%b4%e7%9a%84%e7%ae%97%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/38743.html","title":{"rendered":"\u84dd\u6865\u676f-\u4e0d\u5b8c\u6574\u7684\u7b97\u5f0f"},"content":{"rendered":"

\u95ee\u9898\u63cf\u8ff0<\/h4>\n

\u5c0f\u84dd\u5728\u9ed1\u677f\u4e0a\u5199\u4e86\u4e00\u4e2a\u5f62\u5982\u00a0AopB=CAopB=C\u00a0\u7684\u7b97\u5f0f，\u5176\u4e2d\u00a0AA\u3001BB\u3001CC\u00a0\u90fd\u662f\u975e\u8d1f\u6574\u6570，opop\u00a0\u662f\u00a0+\u3001-\u3001*\u3001\/+\u3001-\u3001*\u3001\/（\u6574\u9664）\u56db\u79cd\u8fd0\u7b97\u4e4b\u4e00\u3002\u4e0d\u8fc7\u00a0AA\u3001opop\u3001BB\u3001CC\u00a0\u8fd9\u56db\u90e8\u5206\u6709\u4e00\u90e8\u5206\u88ab\u4e0d\u5c0f\u5fc3\u7684\u540c\u5b66\u64e6\u6389\u4e86\u3002<\/p>\n

\u7ed9\u51fa\u8fd9\u4e2a\u4e0d\u5b8c\u6574\u7684\u7b97\u5f0f，\u5176\u4e2d\u88ab\u64e6\u6389\u7684\u90e8\u5206（\u88ab\u64e6\u6389\u7684\u90e8\u5206\u662f\u88ab\u5b8c\u6574\u7684\u64e6\u6389，\u4e0d\u4f1a\u51fa\u73b0\u7559\u4e0b\u82e5\u5e72\u4f4d\u6570\u5b57\u7684\u60c5\u51b5）\u7528\u00a0??\u00a0\u4ee3\u66ff\u3002\u8bf7\u4f60\u8f93\u51fa\u88ab\u64e6\u6389\u7684\u90e8\u5206\u3002<\/p>\n

\u8f93\u5165\u63cf\u8ff0<\/h4>\n

\u8f93\u5165\u53ea\u6709\u4e00\u884c，\u5305\u542b\u4e00\u4e2a\u5b57\u7b26\u4e32\u4ee3\u8868\u5982\u4e0a\u6587\u6240\u8ff0\u7684\u4e0d\u5b8c\u6574\u7684\u7b97\u5f0f\u3002<\/p>\n

\u8f93\u51fa\u63cf\u8ff0<\/h4>\n

\u5982\u679c\u88ab\u64e6\u6389\u7684\u90e8\u5206\u662f\u00a0AA\u3001BB\u3001CC\u00a0\u4e4b\u4e00，\u8bf7\u8f93\u51fa\u4e00\u4e2a\u6574\u6570\u4ee3\u8868\u7b54\u6848\u3002\u5982\u679c\u88ab\u64e6\u6389\u7684\u90e8\u5206\u662f\u00a0opop，\u8bf7\u8f93\u51fa+\u3001-\u3001*\u3001\/+\u3001-\u3001*\u3001\/\u56db\u4e2a\u5b57\u7b26\u4e4b\u4e00\u4ee3\u8868\u7b54\u6848\u3002<\/p>\n

\u6837\u4f8b\u8f93\u51651<\/h4>\n

1+?=2<\/p>\n

\u6837\u4f8b\u8f93\u51fa1<\/h4>\n

1<\/p>\n

\u6837\u4f8b\u8f93\u51652<\/h4>\n

10?3=3<\/p>\n

\u6837\u4f8b\u8f93\u51fa2<\/h4>\n

\/<\/p>\n

\u8bc4\u6d4b\u7528\u4f8b\u89c4\u6a21<\/h4>\n

\u5bf9\u4e8e\u00a020%20%\u00a0\u7684\u6570\u636e，\u88ab\u64e6\u6389\u7684\u90e8\u5206\u662f\u00a0CC\u3002<\/p>\n

\u5bf9\u4e8e\u00a040%40%\u00a0\u7684\u6570\u636e，\u88ab\u64e6\u6389\u7684\u90e8\u5206\u662f\u00a0opop\u3002<\/p>\n

\u5bf9\u4e8e\u00a0100%100%\u00a0\u7684\u6570\u636e，\u7b97\u5f0f\u957f\u5ea6\u4e0d\u8d85\u8fc7\u00a01010，\u4e0d\u5305\u542b\u7a7a\u683c\u3002\u7b97\u5f0f\u4e2d\u51fa\u73b0\u7684\u6574\u6570\u4e0d\u5305\u542b\u591a\u4f59\u7684\u524d\u5bfc\u00a000\u3002\u8f93\u5165\u4fdd\u8bc1\u5408\u6cd5\u4e14\u6709\u552f\u4e00\u89e3\u3002<\/p>\n

\u8fd0\u884c\u9650\u5236<\/h4>\n\n\u8bed\u8a00\u6700\u5927\u8fd0\u884c\u65f6\u95f4\u6700\u5927\u8fd0\u884c\u5185\u5b58<\/tr>\n\n\n\n\n\n\n\n\n
C++<\/td>\n1s<\/td>\n256M<\/td>\n<\/tr>\n
C<\/td>\n1s<\/td>\n256M<\/td>\n<\/tr>\n
Java<\/td>\n2s<\/td>\n256M<\/td>\n<\/tr>\n
Python3<\/td>\n3s<\/td>\n256M<\/td>\n<\/tr>\n
PyPy3<\/td>\n3s<\/td>\n256M<\/td>\n<\/tr>\n
Go<\/td>\n3s<\/td>\n256M<\/td>\n<\/tr>\n
JavaScript<\/td>\n3s<\/td>\n256M<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u601d\u8def：<\/p>\n

1.\u5148\u5c06\u7b97\u5f0f\u4ece=\u4e2d\u95f4\u8fdb\u884c\u62c6\u5206，\u62c6\u5206\u6210\u4e24\u4e2a\u5b57\u7b26\u4e32<\/p>\n

2.\u518d\u5224\u65ad？\u6240\u5728\u7684\u4f4d\u7f6e<\/p>\n

（1）\u5224\u65ad ？\u5728C\u7684\u90e8\u5206<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u76f4\u63a5\u5c06\u5bf9\u5e94\u7684\u90e8\u5206\u8fdb\u884c\u8f6c\u6362\u540e\u8fdb\u884c\u8fd0\u7b97<\/p>\n

\u00a0 (2 )\u5224\u65ad ？\u5728\u975eC(A,op,B)\u7684\u90e8\u5206<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5728A\u7684\u4f4d\u7f6e,\u518d\u5224\u65ad\u8fd0\u7b97\u7b26\u6240\u5728\u7684\u7d22\u5f15，\u518d\u62c6\u51fa\u6765\u8fdb\u884c\u8fd0\u7b97<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728op\u7684\u4f4d\u7f6e，\u518d\u5224\u65ad\u8fd0\u7b97\u7b26\u6240\u5728\u7684\u7d22\u5f15，\u518d\u62c6\u51fa\u6765\u8fdb\u884c\u8fd0\u7b97<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728B\u7684\u4f4d\u7f6e，\u518d\u5224\u65ad\u8fd0\u7b97\u7b26\u6240\u5728\u7684\u7d22\u5f15，\u518d\u62c6\u51fa\u6765\u8fdb\u884c\u8fd0\u7b97<\/p>\n

\u57fa\u7840\u8bed\u6cd5：<\/p>\n

1\/\/\u5c06\u8f93\u5165\u7684\u5b57\u7b26\u4e32\u7684\u6574\u884c\u90fd\u63d0\u53d6
\nString s=scan.nextLine();<\/p>\n

2\/\/\u5c06\u5b57\u7b26\u4e32\u6309\u7167\u7b49\u53f7\u4e24\u8fb9\u8fdb\u884c\u5206\u5272
\nString[] s1 =s.split("=");<\/p>\n

3\/\/\u5b57\u7b26\u4e32string\u7684\u5339\u914d：
\nC.equals("?");<\/p>\n

4\/\/\u5b57\u7b26\u7684\u5339\u914d：
\ns.charAt(i)=='?';<\/p>\n

5\/\/\u622a\u53d6\u5b57\u7b26\u4e32，\u4f8b\u5b50：uiasc
\ns.substring(1,3);
\n\/\/substring(1,3)=>ia<\/p>\n

6\/\/\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u6574\u5f62\u6570
\nparseInt("2122"); <\/p>\n

\u6211\u7684\u4ee3\u7801：<\/p>\n

import java.util.Scanner;
\nimport java.util.Arrays;<\/p>\n

import static java.lang.Integer.parseInt;
\n\/\/ 1:\u65e0\u9700package
\n\/\/ 2: \u7c7b\u540d\u5fc5\u987bMain, \u4e0d\u53ef\u4fee\u6539<\/p>\n

public class Main {
\n public static void main(String[] args) {
\n Scanner scan = new Scanner(System.in);
\n \/\/\u5148\u5168\u90e8\u8f93\u5165\u5b57\u7b26\u4e32
\n \/\/\u8fdb\u884c\u62c6\u89e3\u5206\u5272，\u5148\u5206\u4e3a\u7b49\u53f7\u5de6\u53f3\u4e24\u90e8\u5206，\u518d\u628a\u7b49\u53f7\u7684\u5de6\u8fb9\u90e8\u5206\u518d\u5355\u72ec\u5206\u5272\u6210\u4e09\u4e2a\u90e8\u5206
\n \/\/\u6570\u5b57\u683c\u5f0f\u4e3aA op B=C
\n \/\/\u8981\u5206\u89e3\u6210A,op,B,C
\n \/\/\u5148\u8bfb\u53d6\u4e00\u6574\u884c\u7684\u5b57\u7b26\u4e32：2+2=4
\n String s=scan.nextLine();
\n String[] s1 =s.split("=");
\n \/\/\u53d8\u6210：[2+2，4]
\n String s2=s1[0];
\n String C=s1[1];<\/p>\n

\/\/\u5f53？\u51fa\u73b0\u5728C\u7684\u4f4d\u7f6e
\n int id =0;
\n if(C.equals("?")){
\n \/\/\u5bfb\u627e\u8fd0\u7b97\u7b26\u7684\u4f4d\u7f6e
\n for(int i=0;i<s1[0].length();i++){
\n if(s2.charAt(i)<'0'||s2.charAt(i)>'9'){
\n id=i;
\n break;
\n }
\n }
\n int A= parseInt(s2.substring(0,id));
\n int B= parseInt(s2.substring(id+1,s2.length()));
\n String op=s2.substring(id,id+1);
\n if(op.equals("+")) System.out.print(A+B);
\n if(op.equals("-")) System.out.print(A-B);
\n if(op.equals("*")) System.out.print(A*B);
\n if(op.equals("\/")) System.out.print(A\/B);
\n }else{
\n \/\/\u5f53？\u51fa\u73b0\u5728A,op,B\u7684\u4f4d\u7f6e
\n \/\/\u5148\u627e\u5230？\u7684\u4f4d\u7f6e
\n for(int i=0;i<s2.length();i++){
\n if(s2.charAt(i) == '?'){
\n id =i;
\n break;
\n }
\n }
\n \/\/\u5f53？\u51fa\u73b0\u5728A\u7684\u4f4d\u7f6e\u65f6：？+9=10
\n if(id ==0){
\n String op=s2.substring(1,2);
\n int B=parseInt(s2.substring(2,s2.length()));
\n int C1=parseInt(C);
\n if(op.equals("+")) System.out.print(C1-B);
\n if(op.equals("-")) System.out.print(C1+B);
\n if(op.equals("*")) System.out.print(C1\/B);
\n if(op.equals("\/")) System.out.print(C1*B);
\n }else if(id == s2.length()-1){
\n \/\/\u5f53？\u51fa\u73b0\u5728B\u7684\u4f4d\u7f6e\u65f6：1+?=10
\n String op=s2.substring(id-1, id);
\n int A=parseInt(s2.substring(0,id-1));
\n int C1=parseInt(C);
\n if(op.equals("+")) System.out.print(C1-A);
\n if(op.equals("-")) System.out.print(A-C1);
\n if(op.equals("*")) System.out.print(C1\/A);
\n if(op.equals("\/")) System.out.print(A\/C1);
\n }else{
\n \/\/\u5f53？\u51fa\u73b0\u5728op\u7684\u4f4d\u7f6e\u65f6：2?8=10
\n int A=parseInt(s2.substring(0, id));
\n int B=parseInt(s2.substring(id +1,s2.length()));
\n int C1=parseInt(C);
\n if(A+B==C1) System.out.print("+");
\n if(A-B==C1) System.out.print("-");
\n if(A*B==C1) System.out.print("*");
\n if(A\/B==C1) System.out.print("\/");
\n }
\n }
\n scan.close();
\n }
\n} <\/p>\n","protected":false},"excerpt":{"rendered":"

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