'commit'

C++专题课程/字符串操作/convertNumToStr.cpp

@@ -0,0 +1,29 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+/**
+ * <20><><EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>תΪ<D7AA>ַ<EFBFBD><D6B7><EFBFBD>
+ * <20><><EFBFBD>ߣ<EFBFBD><DFA3>ƺ<EFBFBD>
+ * ʱ<>䣺2019-10-31
+ * @param a
+ * @return
+ */
+string convertNumToStr(double a) {
+    string res;
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ss
+    stringstream ss;
+    ss << a;
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>aת<61><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ss
+    ss >> res;
+    //<2F><><EFBFBD><EFBFBD>ssת<73><D7AA><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
+    return res;
+}
+
+
+int main() {
+    double a = 123.32;
+    string a_str=convertNumToStr(a);
+    cout << a_str<< endl;
+    return 0;
+}

C++专题课程/字符串操作/字符串基本知识.cpp

@@ -0,0 +1,29 @@
+#include<bits/stdc++.h>
+using namespace std;
+int main() {
+	//1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	string source = "1234567890";
+	int size=source.length();
+	cout << size << endl;
+	//2<><32>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD>װ
+	string target="";
+	while(true) {
+		//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		if(source.length()==0) {
+			break;
+		}
+		target=target+source[0];
+		source=source.substr(1,source.length()-1);
+		if(source.length()>=2) {
+			source=source.substr(2,source.length()-2)+source.substr(0 , 2);
+		}
+		cout<<"source:"<<source<<endl;
+		cout<<"target:"<<target<<endl;
+		cout<<endl;
+	}
+	cout<<target<<endl;
+	return 0;
+}
+
+
+