Usage of C tryparse

// Return value ：bool, Represents whether the conversion is successful 
// Parameters ：s  The object being converted ,result The assigned object 
public static bool TryParse(string s, out Int32 result);

call

int num;
Debug.log(int.TryParse("9527",out num));

The method TryParse similar Parse , But if the conversion fails , The method TryParse No exceptions . It doesn't need to use exception handling to test FormatException Invalid events that cannot be successfully parsed .

Allied API

int.Parse()

int.Parse() It's a kind of accommodation ; Represents the conversion of a numeric string to int type . If the string is empty , Throw out ArgumentNullException abnormal ; If the content of a string is not a number , Throw out FormatException abnormal ; If the number represented by the content of the string exceeds int The range that a type can represent , Throw out OverflowException abnormal ; int.TryParse And int.Parse It's similar to , But it doesn't produce anomalies , Conversion successful return true, Conversion failure returns false. The last parameter is the output value , If the conversion fails , The output value is 0

Official documents ：https://docs.microsoft.com/zh-cn/dotnet/api/system.int32.tryparse?view=net-6.0#system-int32-tryparse(system-string-system[email protected])