40 lines
		
	
	
		
			643 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			40 lines
		
	
	
		
			643 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| 
								 | 
							
								---
							 | 
						|||
| 
								 | 
							
								title: If Else Statement
							 | 
						|||
| 
								 | 
							
								localeTitle: 如果是其他声明
							 | 
						|||
| 
								 | 
							
								---
							 | 
						|||
| 
								 | 
							
								# 如果是其他声明
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								If-Else语句根据您的前提条件是否已满,执行代码块。
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								## 例
							 | 
						|||
| 
								 | 
							
								```
							 | 
						|||
| 
								 | 
							
								if(boolean expression) 
							 | 
						|||
| 
								 | 
							
								 { 
							 | 
						|||
| 
								 | 
							
								 // execute this code block if expression evalutes to true 
							 | 
						|||
| 
								 | 
							
								 } 
							 | 
						|||
| 
								 | 
							
								 else 
							 | 
						|||
| 
								 | 
							
								 { 
							 | 
						|||
| 
								 | 
							
								 // always execute this code block when above if expression is false 
							 | 
						|||
| 
								 | 
							
								 } 
							 | 
						|||
| 
								 | 
							
								 
							 | 
						|||
| 
								 | 
							
								 
							 | 
						|||
| 
								 | 
							
								 int Price = 30; 
							 | 
						|||
| 
								 | 
							
								 
							 | 
						|||
| 
								 | 
							
								 If (Price = 30) 
							 | 
						|||
| 
								 | 
							
								 { 
							 | 
						|||
| 
								 | 
							
								  Console.WriteLine("Price is equal to 30."); 
							 | 
						|||
| 
								 | 
							
								 } 
							 | 
						|||
| 
								 | 
							
								 
							 | 
						|||
| 
								 | 
							
								 Else 
							 | 
						|||
| 
								 | 
							
								 { 
							 | 
						|||
| 
								 | 
							
								  Console.WriteLine("Price is not equal to 30."); 
							 | 
						|||
| 
								 | 
							
								 } 
							 | 
						|||
| 
								 | 
							
								```
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								由于我们已经宣布我们的int Price为30,这将是预期的产出。
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								## 产量
							 | 
						|||
| 
								 | 
							
								```
							 | 
						|||
| 
								 | 
							
								Price is equal to 30. 
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								```
							 |