missing ( before function parameters.

本文介绍了一个与文档加载相关的函数,该函数使用 `document.onreadystatechange` 方法来监听文档加载的状态变化,这对于理解页面加载流程及进行相应的前端开发非常重要。

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//function document.onreadystatechange()
document.onreadystatechange=function ()
模块1 Rebuild started: Project: 仓库粉尘检测与安全控制系统的设计A Rebuild target 'Target 1' assembling STARTUP.A51... compiling delay.c... compiling ds1302.c... compiling dust_sensor.c... ..\sources\dust_sensor.c(36): error C141: syntax error near 'unsigned', expected '__asm' ..\sources\dust_sensor.c(36): error C202: 'end_time': undefined identifier ..\sources\dust_sensor.c(37): error C141: syntax error near 'unsigned', expected '__asm' ..\sources\dust_sensor.c(37): error C202: 'duration': undefined identifier ..\sources\dust_sensor.c(39): error C202: 'duration': undefined identifier ..\sources\dust_sensor.c(40): error C202: 'duration': undefined identifier compiling oled12864.c... compiling mainA.C... ..\sources\mainA.C(16): error C129: missing ';' before 'current_time' Target not created. Build Time Elapsed: 00:00:01 模块2 Rebuild started: Project: 仓库粉尘检测与安全控制系统的设计B Rebuild target 'Target 1' assembling STARTUP.A51... compiling delay.c... compiling iic.c... compiling key.c... compiling mainB.c... ..\sources\mainB.c(53): warning C206: 'delay_ms': missing function-prototype ..\sources\mainB.c(53): error C267: 'delay_ms': requires ANSI-style prototype compiling pcf8591.c... compiling motor_control.c... ..\sources\motor_control.c(3): warning C318: can't open file 'i2c.h' ..\sources\motor_control.c(10): warning C206: 'PCF8591_WriteDAC': missing function-prototype ..\sources\motor_control.c(10): error C267: 'PCF8591_WriteDAC': requires ANSI-style prototype Target not created. Build Time Elapsed: 00:00:01
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06-16
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