flutter中dart的基础语法

Number

• int 整形

int score = 23;
 print(score);

• double 浮点型

  double test = 1.43434;
  print(test);

Bloolean

bool isValid = true;
print(isValid);

String

• 转义

String s1 = 'i\'m henry';

• 拼接

  String myName = 'test';
  print('my name is' + myName);

• 转类型

  print(100.toString());

• $变量

  int a = 20;
  int b = 10;
  print("total${a + b}");