cpp // for 语句判断条件复杂,没有体现「枚举」的本质for(inti = l; i <= r && i %10!=0; ++i) {// do something...}// for 语句用于枚举,break 用于「到何时为止」for(inti = l; i <= r; ++i) {if(i %10==0)break;// do something...} cpp // 语句重复
③if-else if #include<iostream> #include<cstdio> using namespace std; int main() { int grade; cin >> grade; if (grade >= 85) cout << 'A' << endl; else //蕴含着grade<85 { if (grade >= 70) cout << 'B' << endl; else //蕴含着grade<70 { if (grade >= 60) cout <...
#include <iostream>intmain(){// simple if-statement with an else clauseinti=2;if(i>2)std::cout<<i<<" is greater than 2\n";elsestd::cout<<i<<" is not greater than 2\n";// nested if-statementintj=1;if(i>1)if(j>2)std::cout<<i<<" > 1 and "<<j<<" > 2\n";else...
10print'---begin---' 11if(int(x)>100): 12print"x>100" 13print"The First statement" 14elif(int(x)>50): 15print'x>50' 16print"The Second statement" 17elif(int(x)>30): 18pass 19else: 20print'x<=30' 21print'---end---'...
1)ifstatement; 2)ifstatement with an else clause; 3)switchstatement; 4)consteval ifstatement; 5)consteval ifstatement with an else clause. Iteration statements An iteration statement repeatedly executes some code. attr (optional)while (condition)statement(1) ...
'if' statement (with 'elif' and 'else' branches) 'for' statement (with 'else' branch and 'if' part support) 'include' statement 'import'/'from' statements 'set' statement (both line and block) 'filter' statement 'extends'/'block' statements ...
if (num1 > num2) result = num1; else result = num2; return result; } 把max() 函数和 main() 函数放一块,编译源代码。当运行最后的可执行文件时,会产生下列结果: Max value is : 200 Lambda 函数与表达式 C++ 函数 | 菜鸟教程 setw() 函数 ...
* */ int result = sqlite3_open_v2(m_path, &m_sql, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_NOMUTEX|SQLITE_OPEN_SHAREDCACHE, nullptr); if (SQLITE_OK == result) { std::cout << "SQLite3 打开成功" << std::endl; } else { std::cout << "SQLite3 打开失败" << std:...
if re.data_type='CHAR' or re.data_type='DATE' or re.data_type='VARCHAR2' or re.data_type='RAW' then tmp:=tmp||'|'||'|'''; tmp:=tmp||'|'||'|'||re.column_name||'|'||'|'||''','''; else --tmp:=tmp||'|'||'|'||'decode('||re.column_name||',null,''null...
Boolean Statement to execute expression if True Another way to show this format is: if (); else: To execute a statement when the Boolean expression is False, use else. The format is: if (); else; (This can be on one or more lines.) ...