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}");